AD 2009-26-12

Recurring final rule

Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

AD Number
2009-26-12
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2008-0052
FR Citation
74 FR 69252
Technical illustration of an aircraft turbine engine assembly
Problem area Engine

Applicability

TypeManufacturerModelDetails
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation Reciprocating Engine Cylinder Assemblies Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-D1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-D2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
aircraft Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation Reciprocating Engine Cylinder Assemblies Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-D1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-D2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-320-E2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1F6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1G6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B1H Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B2F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B2F6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-B4A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-H1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-360-H1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-540-D4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-540-D4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-540-D4C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AEIO-540-D4D5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AIO-320-A1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AIO-320-A1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AIO-320-A2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AIO-320-A2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AIO-320-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation AIO-320-C1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HIO-360-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HIO-360-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HIO-360-G1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HO-360-A1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HO-360-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HO-360-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation HO-360-C1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-A1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-A2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-B1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-B1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-B1E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-B2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-C1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-C1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-D1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-D1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-D1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-E1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-E1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-E2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-E2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-320-F1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1F6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B1G6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B2E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B2F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B2F6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-B4A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-E1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-F1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-L2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-M1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-360-M1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-AB1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C1B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C1C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C4B5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C4C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C4D5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-C4D5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-D4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-D4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-D4C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-J4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-N1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-R1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-T4A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-T4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-T4B5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-T4C5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-V4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-V4A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-W1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-W1A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation IO-540-W3A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation LIO-320-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation LIO-320-C1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation LO-360-A1G6D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation LO-360-A1H6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation LTIO-540-K1AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A2D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A3A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A3B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-A3C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B2D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B2E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B3A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B3B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-B3C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C3A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C3B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-C3C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2H Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D2J Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-D3G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E1J Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E2H Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E3D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-320-E3H Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1F6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1F6D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1G6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1G6D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1H Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1H6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1LD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A1P Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A2D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A2E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A2F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A2G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A2H Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A3A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A3AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A3D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4J Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4K Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4M Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4N Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A4P Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-A5AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-B1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-B1B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-B2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-B2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-B2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C1C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C1E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C1F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C1G Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C2C Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C2D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C2E Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C4F Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-C4P Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-D1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-D2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-D2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-F1A6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-G1A6 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-360-J2A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A1B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A1C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A1D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A1D5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A2B Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A3D5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A4C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-A4D5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B1B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B1D5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B2A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B2B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B2C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-B4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-D1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-E4A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-E4B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-E4C5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-F1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-F1B5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-G1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-G2A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-H1A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-H1A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-H1B5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-H2A5 Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-H2A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-H2B5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J1A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J1B5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J1C5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J1D5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J2A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J2B5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J2C5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J2D5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J3A5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-J3C5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation O-540-L3C5D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-AA1AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-AB1AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-AB1BD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-AF1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-AG1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-AK1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-C1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-E1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-G1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-H1A Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TIO-540-K1AD Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation LTO-360-A1A6D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies
appliance Engine Components, Inc. | Lycoming Engines | Textron Lycoming, AVCO Corporation TO-360-A1A6D Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

Unsafe Condition

Cracks at the head-to-barrel interface of ECi cylinder assemblies, leading to cylinder head separation and potential engine failure, which could result in loss of control of the aircraft.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Initial and repetitive visual inspections and compression tests to detect cracks at the head-to-barrel interface. Replace cylinder assemblies found cracked. Replace certain cylinder assemblies at new, reduced times-in-service.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 50 flight hours after the effective date of this AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, 'Parallel Valve' reciprocating engines, with ECi cylinder assembly, part number (P/N) AEL65102 series 'Titan,' and with cylinder head, P/N AEL85099, installed. Serial numbers S/N 1138-02 through S/N 42179-30 are affected.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

The FAA is superseding an existing airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan," installed. That AD currently requires initial and repetitive visual inspections and compression tests to detect cracks at the head-to-barrel interface, replacement of cylinder assemblies found cracked, and replacement of certain cylinder assemblies at new, reduced times-in-service. This AD requires the same actions, but for an expanded population of cylinder assemblies. This AD results from reports of 10 additional cylinder head separations since issuing AD 2008-19-05, on cylinder serial numbers not listed in that AD. We are issuing this AD to prevent loss of engine power due to cracks at the head-to-barrel interface and possible engine failure caused by separation of a cylinder head, which could result in loss of control of the aircraft.

Document Text

Show stored source text (verify against official source)
[Federal Register Volume 74, Number 250 (Thursday, December 31, 2009)]
[Rules and Regulations]
[Pages 69252-69259]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: E9-30732]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0052; Directorate Identifier 2008-NE-01-AD; 
Amendment 39-16151; AD 2009-26-12]
RIN 2120-AA64


Airworthiness Directives; Engine Components, Inc. (ECi) 
Reciprocating Engine Cylinder Assemblies

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is superseding an existing airworthiness directive 
(AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, 
and 540 series, ``Parallel Valve'' reciprocating engines, with certain 
Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) 
AEL65102 series ``Titan,'' installed. That AD currently requires 
initial and repetitive visual inspections and compression tests to 
detect cracks at the head-to-barrel interface, replacement of cylinder 
assemblies found cracked, and replacement of certain cylinder 
assemblies at new, reduced times-in-service. This AD requires the same 
actions, but for an expanded population of cylinder assemblies. This AD 
results from reports of 10 additional cylinder head separations since 
issuing AD 2008-19-05, on cylinder serial numbers not listed in that 
AD. We are issuing this AD to prevent loss of engine power due to 
cracks at the head-to-barrel interface and possible engine failure 
caused by separation of a cylinder head, which could result in loss of 
control of the aircraft.

DATES: This AD becomes effective February 4, 2010.

ADDRESSES: The Docket Operations office is located at Docket Management 
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, 
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.

FOR FURTHER INFORMATION CONTACT: Peter W. Hakala, Aerospace Engineer, 
Special Certification Office, FAA, Rotorcraft Directorate, 2601 Meacham 
Blvd., Fort Worth, TX 76193; e-mail: <a href="/cdn-cgi/l/email-protection#c8b8adbcadbae6bfe6a0a9a3a9a4a988aea9a9e6afa7be"><span class="__cf_email__" data-cfemail="3646534253441841185e575d575a577650575718515940">[email&#160;protected]</span></a>; telephone 
(817) 222-5145; fax (817) 222-5785.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 by 
superseding AD 2008-19-05, Amendment 39-15672 (73 FR 53105, September 
15, 2008), with a proposed AD. The proposed AD applies to Lycoming 
Engines (formerly Textron Lycoming) models 320, 360, and 540 series, 
``Parallel Valve'' reciprocating engines, with certain Engine 
Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 
series ``Titan,'' installed. We published the proposed AD in the 
Federal Register on July 30, 2009 (74 FR 37955). That action proposed 
to require initial and repetitive visual inspections and compression 
tests to detect cracks at the head-to-barrel interface, replacement of 
cylinder assemblies found cracked, and replacement of certain cylinder 
assemblies at new, reduced times-in-service, and for an expanded 
population of cylinder assemblies.

Examining the AD Docket

    You may examine the AD docket on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a>; or in person at the Docket Operations office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this AD, the regulatory evaluation, 
any comments received, and other information. The street address for 
the Docket Operations office (telephone (800) 647-5527) is provided in 
the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We have considered the comments received.
    Two commenters state that proposed AD paragraphs (m) and (n) are 
confusing and contradictory. Paragraph (m) allows repair or replacement 
of cylinders with leakage provided that the cylinder is not cracked, 
but paragraph (n) prohibits removed cylinders from being re-installed.
    We agree. We changed paragraph (m) to state ``For Group `A' 
cylinder assemblies only, repair or replace the engine cylinder 
assembly before further flight if the cause of the low gauge reading in 
paragraph (k) of this AD is from leaking intake or exhaust valves, or 
from leaking piston rings.'' We also changed paragraph (n) to state, 
``After the effective date of this AD, do not install any Group `B' ECi 
cylinder assembly, P/N AEL65102, onto any engine and do not attempt to 
repair or reuse Group `B' cylinder assemblies.''

Conclusion

    We have carefully reviewed the available data, including the 
comments received, and determined that air safety and the public 
interest require adopting the AD with the changes described previously. 
We have determined that these changes will neither increase the 
economic burden on any operator nor increase the scope of the AD.

Costs of Compliance

    We estimate that this AD will affect about 18,000 ECi cylinder 
assemblies installed in aircraft of U.S. registry. The visual 
inspection and compression tests will take about 4 work-hours for each 
engine. An individual cylinder replacement will require $1,100 for 
parts and 6 work-hours. Lycoming engines with a set of 4 ECi cylinders 
will require 12 work-hours for the cylinder replacement. Lycoming 
engines with a set of 6 ECi cylinders will require 16 work-hours for 
the cylinder replacement. We estimate 18 percent of the affected 
population of cylinders will be replaced. We estimate the total cost of 
the AD to U.S. operators to be $10,172,000. Our estimate is exclusive 
of any possible warranty coverage.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

[[Page 69253]]

Regulatory Findings

    We have determined that this AD will not have federalism 
implications under Executive Order 13132. This AD will not have a 
substantial direct effect on the States, on the relationship between 
the national government and the States, or on the distribution of power 
and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866;
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979); and
    (3) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a summary of the costs to comply with this AD and 
placed it in the AD Docket. You may get a copy of this summary at the 
address listed under ADDRESSES.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the Federal Aviation Administration amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Amendment 39-39-15672 (73 FR 
53105, September 15, 2008), and by adding a new airworthiness 
directive, Amendment 39-16151, to read as follows:

2009-26-12 Engine Components, Inc. (ECi): Amendment 39-16151. Docket 
No. FAA-2008-0052; Directorate Identifier 2008-NE-01-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective February 
4, 2010.

Affected ADs

    (b) This AD supersedes AD 2008-19-05, Amendment 39-15672.

Applicability

    (c) If your engine has not been overhauled, or not had any 
cylinder assemblies replaced since new, no further action is 
required.
    (d) This AD applies to the Lycoming Engines (formerly Textron 
Lycoming) models 320, 360, and 540 series, ``Parallel Valve,'' 
reciprocating engines listed in Table 1 of this AD, with ECi 
cylinder assembly, part number (P/N) AEL65102 series ``Titan,'' and 
with cylinder head, P/N AEL85099, installed.
    (1) The applicable cylinder assembly serial numbers (S/Ns) are 
S/N 1138-02 through S/N 35171-22 (referred to in this AD as Group 
``A'' cylinder assemblies); and
    (2) S/N 35239-01 through S/N 42179-30 (referred to in this AD as 
Group ``B'' cylinder assemblies).
    (3) The cylinder assembly P/N is at the crankcase end of the 
cylinder assembly, and might be difficult to see. As a guide in 
determining if your cylinder assemblies are affected, all affected 
cylinder assemblies have cylinder head P/N AEL85099. The cylinder 
head P/N is at the top of the cylinder head, near the intake and 
exhaust valve springs, and is easier to locate than the cylinder 
assembly P/N.
    (4) The set of numbers appearing on the cylinder, above and to 
the left of the S/N, in the form of ``123456'' is not used for 
determining this AD's applicability.

                         Table 1--Engine Models
------------------------------------------------------------------------
      Cylinder assembly part No.           Installed on engine models
------------------------------------------------------------------------
AEL65102-NST04........................  O-320-A1B, A2B, A2C, A2D, A3A,
                                         A3B, B2B, B2C, B2D, B2E, B3B,
                                         B3C, C2B, C2C, C3B, C3C, D1A,
                                         D1AD, D1B, D1C, D1D, D1F, D2A,
                                         D2B, D2C, D2F, D2G, D2H, D2J,
                                         D3G, E1A, E1B, E1C, E1F, E1J,
                                         E2A, E2B, E2C, E2D, E2E, E2F,
                                         E2G, E2H, E3D, E3H.
                                        IO-320-A1A, A2A, B1A, B1B, B1C,
                                         B1D, B1E, B2A, D1A, D1AD, D1B,
                                         D1C, E1A, E1B, E2A, E2B.
                                        AEIO-320-D1B, D2B, E1A, E1B,
                                         E2A, E2B.
                                        AIO-320-A1A, A1B, A2A, A2B, B1B,
                                         C1B.
                                        LIO-320-B1A.
AEL65102-NST05........................  IO-320-C1A, C1B, C1F, F1A.
                                        LIO-320-C1A.
AEL65102-NST06........................  O-320-A1A, A2A, A2B, A2C, A3A,
                                         A3B, A3C, E1A, E1B, E2A, E2C,
                                         (also, an O-320 model with no
                                         suffix).
                                        IO-320-A1A, A2A.
AEL65102-NST07........................  IO-320-B1A, B1B.
                                        LIO-320- B1A.
AEL65102-NST08........................  O-320-B1A, B1B, B2A, B2B, B3A,
                                         B3B, B3C, C1A, C1B, C2A, C2B,
                                         C3A, C3B, C3C, D1A, D1B, D2A,
                                         D2B, D2C.
AEL65102-NST10........................  O-360-A1A, A1C, A1D, A2A, A2E,
                                         A3A, A3D, A4A, B1A, B1B, B2A,
                                         B2B, C1A, C1C, C1G, C2A, C2B,
                                         C2C, C2D, D1A, D2A, D2B.
                                        IO-360-B1A, B1B, B1C.
                                        HO-360-A1A, B1A, B1B.
                                        HIO-360-B1A, B1B.
                                        AEIO-360-B1B.
                                        O-540-A1A, A1A5, A1B5, A1C5,
                                         A1D, A1D5, A2B, A3D5, A4A5,
                                         A4B5, A4C5, A4D5, B1A5, B1B5,
                                         B1D5, B2A5, B2B5, B2C5, B4A5,
                                         B4B5, D1A5, E1A, E4A5, E4B5,
                                         E4C5, F1A5, F1B5, G1A5, G2A5.
                                        IO-540-C1B5, C1C5, C2C, C4B5,
                                         C4B5D, C4C5, D4A5, D4B5, N1A5.
AEL65102-NST12........................  O-360-A1A, A1AD, A1D, A1F, A1F6,
                                         A1F6D, A1G, A1G6, A1G6D, A1H,
                                         A1H6, A1J, A1LD, A1P, A2A, A2D,
                                         A2F, A2G, A2H, A3A, A3AD, A3D,
                                         A4A, A4AD, A4D, A4G, A4J, A4JD,
                                         A4K, A4M, A4N, A4P, A5AD, B1A,
                                         B2C, C1A, C1C, C1E, C1F, C1G,
                                         C2A, C2B, C2C, C2D, C2E, C4F,
                                         C4P, D2A, F1A6, G1A6.
                                        HO-360 -C1A.
                                        LO-360-A1G6D, A1H6.
                                        HIO-360-B1A, B1B, G1A.
                                        LTO-360-A1A6D.
                                        TO-360-A1A6D.
                                        IO-360-B1B, B1BD, B1D, B1E, B1F,
                                         B1F6, B1G6, B2E, B2F, B2F6,
                                         B4A, E1A, L2A, M1A, M1B.
                                        AEIO-360-B1B, B1D, B1E, B1F,
                                         B1F6, B1G6, B1H, B2F, B2F6,
                                         B4A, H1A, H1B.
                                        O-540-A4D5, B2B5, B2C5, B2C5D,
                                         B4B5, B4B5D, E4A5, E4B5, E4C5,
                                         G1A5, G2A5, H1A5, H1A5D, H1B5,
                                         H1B5D, H2A5, H2A5D, H2B5D.

[[Page 69254]]

 
                                        IO-540-C4B5, C4B5D, C4D5, C4D5D,
                                         D4A5, D4B5, D4C5, N1A5, N1A5D,
                                         T4A5D, T4B5, T4B5D, T4C5D,
                                         V4A5, V4A5D.
                                        AEIO-540-D4A5, D4B5, D4C5, D4D5.
AEL65102-NST26........................  IO-540-J4A5, R1A5.
                                        TIO-540-C1A, E1A, G1A, H1A.
AEL65102-NST38........................  IO-360-F1A.
                                        TIO-540-AA1AD, AB1AD, AB1BD,
                                         AF1A, AG1A, AK1A, C1A, C1AD,
                                         K1AD.
                                        LTIO-540-K1AD.
AEL65102-NST43........................  O-360-J2A.
                                        O-540-F1B5, J1A5D, J1B5D, J1C5D,
                                         J1D5D, J2A5D, J2B5D, J2C5D,
                                         J2D5D, J3A5, J3A5D, J3C5D.
                                        IO-540-AB1A5, W1A5, W1A5D,
                                         W3A5D.
AEL65102-NST44........................  O-540-L3C5D.
------------------------------------------------------------------------

    The Lycoming Engines (formerly Textron Lycoming) models 320, 
360, and 540 series, ``Parallel Valve'', reciprocating engines are 
installed on, but not limited to, the aircraft listed in the 
following Table 2:

            Table 2--Engines Installed on, but Not Limited To
------------------------------------------------------------------------
             Engine models              Installed on, but not limited to
------------------------------------------------------------------------
O-320-A1A.............................  Piper Aircraft: Tri-Pacer (PA-22
                                         ``150'', PA-22S ``150''),
                                         Apache (PA-23), Pawnee (PA-25).
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
                                        Mooney Aircraft: Mark (20A).
                                        Dinfia: Ranquel (1A-46).
                                        Simmering-Graz Pauker: Flamingo
                                         (SGP-M-222).
                                        Aviamilano: Scricciolo (P-19).
                                        Vos Helicopter Co.: Spring Bok.
O-320-A1B.............................  Piper Aircraft: Tri-Pacer (PA-22
                                         ``150'', PA-22S ``150''),
                                         Apache (PA-23).
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
                                        S.O.C.A.T.A.: Horizon (Gardan).
O-320-A2A.............................  Piper Aircraft: Tri-Pacer (PA-22
                                         ``150'', PA-22S ``150''),
                                         Agriculture (PA-18A ``150''),
                                         Super Cub (PA-18 ``150''),
                                         Caribbean (PA-22 ``150''),
                                         Pawnee (PA-25).
                                        Intermountain Mfg. Co.: Call Air
                                         Texas (A-5, A-5T).
                                        Lake Aircraft: Colonial (C-1).
                                        Rawdon Bros.: Rawdon (T-1, T-15,
                                         T-15D).
                                        Shinn Engineering: Shinn (2150-
                                         A).
                                        Dinfia: Ranquel (1A-46).
                                        Neiva: (1PD-5802).
                                        Sud: Gardan-Horizon (GY-80).
                                        LaVerda: Falco (F8L Series II,
                                         America).
                                        Malmo: Vipan (MF1-10).
                                        Kingsford Smith: Autocrat (SCRM-
                                         153).
                                        Aero Commander: 100.
O-320-A2B.............................  Piper Aircraft: Tri-Pacer (PA-22
                                         ``150'', PA-22S ``150''),
                                         Cherokee (PA-28 ``150''), Super
                                         Cub (PA-18 ``150'').
                                        Champion Aircraft: Challenger
                                         (7GCA, 7GCB, 7KC), Citabria
                                         (7GCAA, 7GCRC), Agriculture
                                         (7GCBA).
                                        Beagle: Pup (150).
                                        Artic: Interstate S1B2.
                                        Robinson: R-22.
                                        Varga: Kachina 2150A.
O-320-A2C.............................  Robinson: R-22.
                                        Cicare: Cicare AG.
                                        Bellanca Aircraft: Citabria 150
                                         (7GCAA), Citabria 150S (7GCBC).
O-320-A2D.............................  Piper Aircraft: Apache (PA-23).
O-320-A3A.............................  Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
                                        Corben-Fettes: Globe Special
                                         (Globe GC-1B).
O-320-A3B.............................  Piper Aircraft: Apache (PA-23).
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
                                        Teal II: TSC (1A2).
O-320-B1A.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
                                        Malmo: Vipan (MF1-10).
O-320-B1B.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
O-320-B2A.............................  Piper Aircraft: Tri-Pacer (PA-22
                                         ``160'', PA-22S ``160'').
O-320-B2B.............................  Piper Aircraft: Tri-Pacer (PA-22
                                         ``160'', PA-22S ``160'').
                                        Beagle: Airedale (D5-160).
                                        Fuji-Heavy Industries: Fuji (F-
                                         200).
                                        Uirapuru: Aerotec 122.
O-320-B2C.............................  Robinson: R-22.

[[Page 69255]]

 
O-320-B2D.............................  Maule: MX-7-160.
O-320-B2E.............................  Lycon.
O-320-B3A.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
O-320-B3B.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
                                        Doyn Aircraft: Doyn-Cessna (170,
                                         170A, 170B).
                                        Sud: Gardan (GY80-160).
O-320-C1A.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
                                        Riley Aircraft: Rayjay (Apache).
O-320-C1B.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
O-320-C3A.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
O-320-C3B.............................  Piper Aircraft: Apache (PA-23
                                         ``160'').
O-320-D1A.............................  Sud: Gardan (GY-80).
                                        Gyroflug: Speed Cancard.
                                        Grob: G115.
O-320-D1F.............................  Slingsby: T67 Firefly.
O-320-D2A.............................  Piper Aircraft: Cherokee (PA-28S
                                         ``160'').
                                        Robin: Major (DR400-140B),
                                         Chevalier (DR-360), (R-3140).
                                        S.O.C.A.T.A.: Tampico TB9.
                                        Slingsby: T67C Firefly.
                                        Daetwyler: MD-3-160.
                                        Nash Aircraft Ltd.: Petrel.
                                        Aviolight: P66D Delta.
                                        General Avia: Pinguino.
O-320-D2B.............................  Beech Aircraft: Musketeer (M-
                                         23).
                                        Piper Aircraft: Cherokee (PA-28
                                         ``160'').
O-320-D2J.............................  Cessna Aircraft: Skyhawk 172.
O-320-D3G.............................  Piper Aircraft: Warrior II,
                                         Cadet (PA-28-161).
O-320-E1A.............................  Grob: G115.
O-320-E1C.............................  M.B.B. (Messerschmitt-Boelkow-
                                         Blohm): Monsun (BO-209-B).
O-320-E1F.............................  M.B.B.: Monsun (BO-209-B).
O-320-E2A.............................  Piper Aircraft: Cherokee (PA-28
                                         ``140'', PA-28 ``150'').
                                        Robin: Major (DR-340), Sitar,
                                         Bagheera (GY-100-135).
                                        S.O.C.A.T.A.: Super Rallye (MS-
                                         886), Rallye Commodore (MS-
                                         892).
                                        Siai-Marchetti: (S-202).
                                        F.F.A.: Bravo (AS-202/15).
                                        Partenavia: Oscar (P66B), Bucker
                                         (131 APM).
                                        Aeromot: Paulistina P-56.
                                        Pezetel: Koliber 150.
O-320-E2C.............................  Beech Aircraft: Musketeer III (M-
                                         23III).
                                        M.B.B.: Monsun (BO-209-B).
O-320-E2D.............................  Cessna Aircraft: Cardinal (172-
                                         I, 177).
O-320-E2F.............................  M.B.B.: Monsun (BO-209-B),
                                         Wassmer Pacific (WA-51).
O-320-E2G.............................  American Aviation Corp.:
                                         Traveler.
O-320-E3D.............................  Piper Aircraft: Cherokee (140).
                                        Beech Aircraft: Sport.
IO-320-B2A............................  Piper Aircraft: Twin Comanche
                                         (PA-30).
IO-320-B1C............................  Hi. Shear: Wing.
IO-320-B1D............................  Ted Smith Aircraft: Aerostar.
IO-320-C1A............................  Piper Aircraft: Twin Comanche
                                         (PA-30 Turbo).
IO-320-D1A............................  M.B.B.: Monsun (BO-209-C).
IO-320-D1B............................  M.B.B.: Monsun (BO-209-C).
IO-320-E1A............................  M.B.B.: Monsun (BO-209-C).
IO-320-E1B............................  Bellanca Aircraft.
IO-320-E2A............................  Champion Aircraft: Citabria.
IO-320-E2B............................  Bellanca Aircraft.
IO-320-F1A............................  CAAR Engineering: Carr Midget.
LIO-320-B1A...........................  Piper Aircraft: Twin Comanche
                                         (PA-39).
LIO-320-C1A...........................  Piper Aircraft: Twin Comanche
                                         (PA-39).
AIO-320-B1B...........................  M.B.B.: Monsun (BO-209-C).
AEIO-320-D1B..........................  Slingsby: T67M Firefly.
AEIO-320-D2B..........................  Hundustan Aeronautics Ltd.: HT-
                                         2.
AEIO-320-E1A..........................  Bellanca Aircraft.
                                        Champion Aircraft.
AEIO-320-E1B..........................  Bellanca Aircraft.
                                        Champion Aircraft: Decathalon
                                         (8KCAB-CS).
AEIO-320-E2B..........................  Bellanca Aircraft.
                                        Champion Aircraft: Decathalon
                                         (8KCAB).
O-320-A1A.............................  Riley Aircraft: Riley Twin.
O-360-A1A.............................  Beech Aircraft: Travel Air (95,
                                         B-95).
                                        Piper Aircraft: Comanche (PA-
                                         24).
                                        Intermountain Mfg. Co.: Call Air
                                         (A-6).

[[Page 69256]]

 
                                        Lake Aircraft: Colonial (C-2, LA
                                         -4, -4A or -4P).
                                        Doyn Aircraft: Doyn-Cessna
                                         (170B, 172, 172A, 172B).
                                        Mooney Aircraft: Mark ``20B'' (M-
                                         20B).
                                        Earl Horton: Pawnee (Piper PA-
                                         25).
                                        Dinfia: Ranquel (1A-51).
                                        Neiva: (1PD-5901).
                                        Regente: (N-591).
                                        Wassmer: Super 4 (WA-50A), Sancy
                                         (WA-40), Baladou (WA-40),
                                         Pariou (WA-40).
                                        Sud: Gardan (GY-180).
                                        Bolkow: (207).
                                        Partenavia: Oscar (P-66).
                                        Siai-Marchetti: (S-205).
                                        Procaer: Picchio (F-15-A).
                                        S.A.A.B.: Safir (91-D).
                                        Malmo: Vipan (MF-10B).
                                        Aero Boero: AB-180.
                                        Beagle: Airedale (A-109).
                                        DeHavilland: Drover (DHA-3MK3).
                                        Kingsford-Smith: Bushmaster (J5-
                                         6).
                                        Aero Engine Service Ltd.: Victa
                                         (R-2).
O-360-A1AD............................  S.O.C.A.T.A.: Tabago TB-10.
O-360-A1D.............................  Piper Aircraft: Comanche (PA-
                                         24).
                                        Lake Aircraft: Colonial (LA-4, -
                                         4A or -4P).
                                        Doyn Aircraft: Doyn-Beech (Beech
                                         95).
                                        Mooney Aircraft: Master ``21''
                                         (M-20E), Mark ``20B'', ``20D'',
                                         (M20B, M20C), Mooney Statesman
                                         (M-20G).
                                        Dinfia: Querandi (1A-45).
                                        Wassmer: (WA-50).
                                        Malmo: Vipan (MF1-10).
                                        Cessna Aircraft: Skyhawk.
                                        Doyn Aircraft: Doyn-Piper (PA-23
                                         ``160'').
O-360-A1F6............................  Cessna Aircraft: Cardinal.
O-360-A1F6D...........................  Cessna Aircraft: Cardinal 177.
                                        Teal III: TSC (1A3).
O-360-A1G6............................  Aero Commander.
O-360-A1G6D...........................  Beech Aircraft: Duchess 76.
O-360-A1H6............................  Piper Aircraft: Seminole (PA-
                                         44).
O-360-A1LD............................  Wassmer: Europa WA-52.
O-360-A1P.............................  Aviat: Husky.
O-360-A2A.............................  Center Est Aeronautique: Regente
                                         (DR-253).
                                        S.O.C.A.T.A.: Rallye Commodore
                                         (MS-893).
                                        Societe Aeronautique Normande:
                                         Mousquetaire (D-140).
                                        Bolkow: Klemm (K1-107C).
                                        Partenavia: Oscar (P-66).
                                        Beagle: Husky (D5-180) (J1-U).
O-360-A2D.............................  Piper Aircraft: Comanche (PA-
                                         24), Cherokee ``C'' (PA-28
                                         ``180'').
                                        Mooney Aircraft: Master ``21''
                                         (M-20D), Mark ``21'' (M-20E).
O-360-A2E.............................  Std. Helicopter.
O-360-A2F.............................  Aero Commander: Lark (100).
                                        Cessna Aircraft: Cardinal.
O-360-A2G.............................  Beech Aircraft: Sport.
O-360-A3A.............................  C.A.A.R.P.S.A.N.: (M-23III).
                                        Societe Aeronautique Normande:
                                         Jodel (D-140C).
                                        Robin: Regent (DR400/180),
                                         Remorqueur (DR400/180R), R-
                                         3170.
                                        S.O.C.A.T.A.: Rallye 180GT,
                                         Sportavia Sportsman (RS-180).
                                        Norman Aeroplace Co.: NAC-1
                                         Freelance.
                                        Nash Aircraft Ltd.: Petrel.
O-360-A3AD............................  S.O.C.A.T.A.: TB-10.
                                        Robin: Aiglon (R-1180T).
O-360-A4A.............................  Piper Aircraft: Cherokee ``D''
                                         (PA-28 ``180'').
O-360-A4D.............................  Varga: Kachina.
O-360-A4G.............................  Beech Aircraft: Musketeer Custom
                                         III.
O-360-A4K.............................  Grumman American: Tiger.
                                        Beech Aircraft: Sundowner 180.
O-360-A4M.............................  Piper Aircraft: Archer II (PA-28
                                         ``18'').
                                        Valmet: PIK-23.
O-360-A4N.............................  Cessna Aircraft: 172 (Optional).
O-360-A4P.............................  Penn Yan: Super Cub Conversion.
O-360-A5AD............................  C. Itoh and Co.: Fuji FA-200.
O-360-B2C.............................  Seabird Aviation: SB7L.
O-360-C1A.............................  Intermountain Mfg. Co.: Call Air
                                         (A-6).
O-360-C1E.............................  Bellanca Aircraft: Scout (8GCBC-
                                         CS).
O-360-C1F.............................  Maule: Star Rocket MX-7-180.

[[Page 69257]]

 
O-360-C1G.............................  Christen: Husky (A-1).
O-360-C2B.............................  Hughes Tool Co.: (269A).
O-360-C2D.............................  Hughes Tool Co.: (269A).
O-360-C2E.............................  Hughes Tool Co.: (YHO-2HU)
                                         Military.
                                        Bellanca Aircraft: Scout (8GCBC
                                         FP).
O-360-C4F.............................  Maule: MX-7-180A.
O-360-C4P.............................  Penn Yan: Super Cub Conversion.
O-360-F1A6............................  Cessna Aircraft: Cutlass RG.
O-360-J2A.............................  Robinson: R22.
IO-360-B1A............................  Beech Aircraft: Travel-Air (B-
                                         95A).
                                        Doyn Aircraft: Doyn-Piper (PA-23
                                         ``200'').
IO-360-B1B............................  Beech Aircraft: Travel-Air (B-
                                         95B).
                                        Doyn Aircraft: Doyn-Piper (PA-23
                                         ``200'').
                                        Fuji: (FA-200).
IO-360-B1D............................  United Consultants: See-Bee.
IO-360-B1E............................  Piper Aircraft: Arrow (PA-28
                                         ``180R'').
IO-360-B1F............................  Utva: 75.
IO-360-B2E............................  C.A.A.R.P. C.A.P.: (10).
IO-360-B1F6...........................  Great Lakes: Trainer.
IO-360-B1G6...........................  American Blimp: Spector 42.
IO-360-B2F6...........................  Great Lakes: Trainer.
LO-360-A1G6D..........................  Beech Aircraft: Duchess.
LO-360-A1H6...........................  Piper Aircraft: Seminole (PA-
                                         44).
IO-360-E1A............................  T.R. Smith Aircraft: Aerostar.
IO-360-L2A............................  Cessna Aircraft: Skyhawk C-172.
IO-360-M1A............................  Diamond Aircraft: DA-40.
IO-360-M1B............................  Vans Aircraft: RV6, RV7, RV8.
                                        Lancair: 360.
AEIO-360-B1F..........................  F.F.A.: Bravo (200).
                                        Grob: G115/Sport-Acro.
AEIO-360-B1G6.........................  Great Lakes.
AEIO-360-B2F..........................  Mundry: CAP-10.
AEIO-360-B4A..........................  Pitts: S-1S.
AEIO-360-H1A..........................  Bellanca Aircraft: Super
                                         Decathalon (8KCAB-180).
AEIO-360-H1B..........................  American Champion: Super
                                         Decathalon.
VO-360-A1A............................  Brantly Hynes Helicopter: (B-2).
VO-360-A1B............................  Brantly Hynes Helicopter: (B-2,
                                         B2-A). Military (YHO-3BR).
VO-360-B1A............................  Brantly Hynes Helicopter: (B-2,
                                         B2-A).
IVO-360-A1A...........................  Brantly Hynes Helicopter: (B2-
                                         B).
HO-360-B1A............................  Hughes Tool Co.: (269A).
HO-360-B1B............................  Hughes Tool Co.: (269A).
HO-360-C1A............................  Schweizer: (300C).
HIO-360-B1A...........................  Hughes Tool Co.: Military (269-A-
                                         1), (TH-55A).
HIO-360-B1B...........................  Hughes Tool Co.: (269A).
HIO-360-G1A...........................  Schweizer: (CB).
O-540-A1A.............................  Rhein-Flugzeugbau: (RF-1).
O-540-A1A5............................  Piper Aircraft: Comanche (PA-24
                                         ``180'').
                                        Helio: Military (H-250).
                                        Yoeman Aviation: (YA-1).
O-540-A1B5............................  Piper Aircraft: Aztec (PA-23
                                         ``250''), Comanche (PA-24
                                         ``250'').
O-540-A1C5............................  Piper Aircraft: Comanche (PA-24
                                         ``250'').
O-540-A1D.............................  Found Bros.: (FBA-2C).
                                        Dornier: (DO-28-B1).
O-540-A1D5............................  Piper Aircraft: Aztec (PA-23
                                         ``250''), Comanche (PA-24
                                         ``250''), Military Aztec (U-
                                         11A).
                                        Dornier: (DO-28).
O-540-A2B.............................  Aero Commander: (500).
                                        Mid-States Mfg. Co.: Twin
                                         Courier (H-500), (U-5).
O-540-A3D5............................  Piper Aircraft: Navy Aztec (PA-
                                         23 ``250'').
O-540-B1A5............................  Piper Aircraft: Apache (PA-23
                                         ``235'').
O-540-B1B5............................  Piper Aircraft: Comanche (PA-24
                                         ``250'').
                                        Doyn Aircraft: Doyn-Piper (PA-24
                                         ``250'').
O-540-B1D5............................  Wassmer: (WA-421).
O-540-B2B5............................  Piper Aircraft: Pawnee (PA-25
                                         ``235''), Cherokee (PA-28
                                         ``235''), Aztec (PA-23
                                         ``235'').
                                        Intermountain Mfg. Co.: Call Air
                                         (A-9).
                                        Rawdon Bros.: Rawdon (T-1).
                                        S.O.C.A.T.A.: Rallye 235CA.
O-540-B2C5............................  Piper Aircraft: Pawnee (PA-25
                                         ``235'').
O-540-B4B5............................  Piper Aircraft: Cherokee (PA-28
                                         ``235'').
                                        Embraer: Corioca (EMB-710).
                                        S.O.C.A.T.A.: Rallye 235GT,
                                         Rallye 235C.
                                        Maule: Star Rocket (MX-7-235),
                                         Super Rocket (M-6-235), Super
                                         Std. Rocket (M-7-235).
O-540-E4A5............................  Piper Aircraft: Comanche (PA-24
                                         ``260'').

[[Page 69258]]

 
                                        Aviamilano: Flamingo (F-250).
                                        Siai-Marchetti: (SF-260), (SF-
                                         208).
O-540-E4B5............................  Britten-Norman: (BN-2).
                                        Piper Aircraft: Cherokee Six (PA-
                                         32 ``260'').
O-540-E4C5............................  Pilatus Britten-Norman: Islander
                                         (BN-2A-26), Islander (BN-2A-
                                         27), Islander II (BN-2B-26),
                                         Islander (BN-2A-21), Trislander
                                         (BN-2A-Mark III-2).
O-540-F1B5............................  Omega Aircraft: (BS-12D1).
                                        Robinson: (R-44).
O-540-G1A5............................  Piper Aircraft: Pawnee (PA-25
                                         ``260'').
O-540-H1B5D...........................  Aero Boero: 260.
O-540-H2A5............................  Embraer: Impanema ``AG''.
                                        Gippsland: GA-200.
O-540-H2B5D...........................  Aero Boero: 260.
O-540-J1A5D...........................  Maule: Star Rocket (MX-7-235),
                                         Super Rocket (M-6-235), Super
                                         Std. Rocket (M-7-235).
O-540-J3A5............................  Robin: R-3000/235.
O-540-J3A5D...........................  Piper Aircraft: Dakota (PA-28-
                                         236).
O-540-J3C5D...........................  Cessna Aircraft: Skylane RG.
O-540-L3C5D...........................  Cessna Aircraft: TR-182, Turbo
                                         Skylane RG.
IO-540-C1B5...........................  Piper Aircraft: Aztec B (PA-23
                                         ``250''), Comanche (PA-24
                                         ``250'').
IO-540-C1C5...........................  Riley Aircraft: Turbo-Rocket.
IO-540-C4B5...........................  Piper Aircraft: Aztec C (PA-23
                                         ``250''), Aztec F.
                                        Wassmer: (WA4-21).
                                        Avions Pierre Robin: (HR100/
                                         250).
                                        Bellanca Aircraft: Aries T-250.
                                        Aerofab: Renegade 250.
IO-540-C4D5...........................  S.O.C.A.T.A.: TB-20.
IO-540-C4D5D..........................  S.O.C.A.T.A.: Trinidad TB-20.
IO-540-D4A5...........................  Piper Aircraft: Comanche (PA-24
                                         ``260'').
                                        Siai-Marchetti: (SF-260).
IO-540-D4B5...........................  Cerva: (CE-43 Guepard).
IO-540-J4A5...........................  Piper Aircraft: Aztec (PA-23
                                         ``250'').
IO-540-R1A5...........................  Piper Aircraft: Comanche (PA-
                                         24).
IO-540-T4A5D..........................  General Aviation: Model 114.
IO-540-T4B5...........................  Commander: 114B.
IO-540-T4B5D..........................  Rockwell: 114.
IO-540-T4C5D..........................  Lake Aircraft: Seawolf.
IO-540-V4A5...........................  Maule: MT-7-260, M-7-260.
                                        Aircraft Manufacturing Factory.
IO-540-V4A5D..........................  Brooklands: Scoutmaster.
IO-540-W1A5...........................  Maule: MX-7-235, MT-7-235, M7-
                                         235.
IO-540-W1A5D..........................  Maule: Star Rocket (MX-7-235),
                                         Super Rocket (M-6-235), Super
                                         Std. Rocket (M-7-235).
IO-540-W3A5D..........................  Schweizer: Power Glider.
AEIO-540-D4A5.........................  Christen: Pitts (S-2S, S-2B).
                                        Siai-Marchetti: SF-260.
                                        H.A.L.: HPT-32.
                                        Slingsby: Firefly T3A.
AEIO-540-D4B5.........................  Moravan: Zlin-50L.
                                        H.A.L.: HPT-32.
AEIO-540-D4D5.........................  Burkhart Grob: Grob G, 115T
                                         Aero.
TIO-540-C1A...........................  Piper Aircraft: Turbo Aztec (PA-
                                         23-250).
TIO-540-K1AD..........................  Piper Aircraft.
TIO-540-AA1AD.........................  Aerofab Inc.: Turbo Renegade
                                         (270).
TIO-540-AB1AD.........................  S.O.C.A.T.A.: Trinidad TC TB-21.
TIO-540-AB1BD.........................  Schweizer.
TIO-540-AF1A..........................  Mooney Aircraft: ``TLS'' M20M.
TIO-540-AG1A..........................  Commander Aircraft: 114TC.
TIO-540-AK1A..........................  Cessna Aircraft: Turbo Skylane
                                         T182T.
LTIO-540-K1AD.........................  Piper Aircraft.
------------------------------------------------------------------------

Unsafe Condition

    (e) This AD results from reports of 10 additional cylinder head 
separations since issuing AD 2008-19-05, on cylinder S/Ns not listed 
in that AD. We are issuing this AD to prevent loss of engine power 
due to cracks at the head-to-barrel interface in the cylinder 
assemblies and possible engine failure caused by separation of a 
cylinder head, which could result in loss of control of the 
aircraft.

Compliance

    (f) You are responsible for having the actions required by this 
AD performed within the compliance times specified unless the 
actions have already been done.

Engines Overhauled or Cylinder Assemblies Replaced Since New

    (g) If your engine was overhauled or had a cylinder assembly 
replaced since new, do the following:
    (1) Before further flight, inspect the maintenance records and 
engine logbook to determine if the overhaul or repair facility 
installed ECi cylinder assemblies, P/N AEL65102, with cylinder head, 
PN

[[Page 69259]]

AEL85099, S/N 1138-02 through S/N 35171-22, or S/N 35239-01 through 
S/N 42179-30, in your engine.
    (2) If your cylinder assemblies are not ECi, P/N AEL65102, no 
further action is required.
    (3) If your cylinder assemblies are ECi, P/N AEL65102, but the 
S/N is not listed in this AD, no further action is required.
    (4) If the cylinder assemblies are ECi, P/N AEL65102, and if the 
S/N is listed in this AD, do the following:

Group ``A'' Cylinder Assemblies; S/N 1138-02 Through S/N 35171-22

    (i) For Group ``A'' cylinder assemblies:
    (A) Perform an initial visual inspection as specified in 
paragraphs (h) through (i) of this AD, and an initial compression 
test as specified in paragraphs (j) through (m) of this AD, within 
the next 10 operating hours time-in-service (TIS), if the cylinder 
assembly has 350 or more operating hours TIS on the effective date 
of this AD, but fewer than 2,000 operating hours TIS.
    (B) Perform an initial visual inspection as specified in 
paragraphs (h) through (i) of this AD, and an initial compression 
test as specified in paragraphs (j) through (m) of this AD, within 
the next 10 operating hours TIS, or before exceeding 350 operating 
hours TIS, whichever occurs later, if the cylinder assembly has 
fewer than 350 operating hours TIS on the effective date of this AD.
    (C) Replace cylinder assemblies installed in helicopter engines 
within the next 25 operating hours TIS after the effective date of 
this AD if the cylinder assembly has 1,500 operating hours TIS or 
more on the effective date of this AD.
    (D) Replace cylinder assemblies installed in airplane engines 
within the next 25 operating hours TIS after the effective date of 
this AD if the cylinder assembly has 2,000 operating hours TIS or 
more on the effective date of this AD.
    (E) Perform repetitive visual inspections as specified in 
paragraphs (h) through (i) of this AD, and repetitive compression 
tests as specified in paragraphs (j) through (m) of this AD, within 
every 50 operating hours TIS.
    (F) Replace cylinder assemblies installed in helicopter engines 
that pass the visual inspections and compression tests, no later 
than 1,500 operating hours TIS after the effective date of this AD.
    (G) Replace cylinder assemblies installed in airplane engines 
that pass the visual inspections and compression tests, no later 
than 2,000 operating hours TIS after the effective date of this AD.

Group ``B'' Cylinder Assemblies; S/N 35239-01 through S/N 42179-30

    (ii) For Group ``B'' cylinder assemblies:
    (A) Perform an initial visual inspection as specified in 
paragraphs (h) through (i) of this AD, and initial compression test 
as specified in paragraphs (j) through (l) of this AD, within the 
next 10 operating hours TIS.
    (B) Replace the cylinder assembly within the next 25 operating 
hours TIS after the effective date of this AD if the cylinder 
assembly has 350 or more operating hours TIS on the effective date 
of this AD.
    (C) Replace cylinder assemblies that pass the initial visual 
inspections and compression tests, before exceeding 350 operating 
hours TIS after the effective date of this AD.

Visual Inspection

    (h) Visually inspect each cylinder head around the exhaust valve 
side for cracks or any signs of black or white residue of combustion 
leakage from cracks.
    (i) Replace cracked cylinder assemblies before further flight.

Cylinder Assembly Compression Test

    (j) Perform a standard cylinder differential compression test.
    (k) During the compression test, if the cylinder pressure gauge 
reads below 70 pounds-per-square-inch, apply a water and soap 
solution to the side of the leaking cylinder, near the head-to-
barrel interface.
    (l) Replace the cylinder assembly before further flight if air 
leakage and bubbles are observed on the side of the cylinder 
assembly, near the head-to-barrel interface.
    (m) For Group ``A'' cylinder assemblies only, repair or replace 
the engine cylinder assembly before further flight if the cause of 
the low gauge reading in paragraph (k) of this AD is from leaking 
intake or exhaust valves, or from leaking piston rings.

Prohibition of Group ``B'' ECi Cylinder Assemblies Affected by This AD

    (n) After the effective date of this AD, do not install any 
Group ``B'' ECi cylinder assembly, P/N AEL65102, onto any engine and 
do not attempt to repair or reuse Group ``B'' cylinder assemblies.

Alternative Methods of Compliance

    (o) The Manager, Special Certification Office, has the authority 
to approve alternative methods of compliance for this AD if 
requested using the procedures found in 14 CFR 39.19.

Special Flight Permits

    (p) Under 14 CFR 39.23, we will not approve special flight 
permits for this AD for engines that have failed the visual 
inspection or the cylinder assembly compression test required by 
this AD.

Related Information

    (q) Contact Peter W. Hakala, Aerospace Engineer, Special 
Certification Office, FAA, Rotorcraft Directorate, 2601 Meacham 
Blvd., Fort Worth, TX 76193; e-mail: <a href="/cdn-cgi/l/email-protection#d0a0b5a4b5a2fea7feb8b1bbb1bcb190b6b1b1feb7bfa6"><span class="__cf_email__" data-cfemail="f28297869780dc85dc9a9399939e93b2949393dc959d84">[email&#160;protected]</span></a>; 
telephone (817) 222-5145; fax (817) 222-5785, for more information 
about this AD.

    Issued in Burlington, Massachusetts, on December 22, 2009.
Peter A. White,
Assistant Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E9-30732 Filed 12-30-09; 8:45 am]
BILLING CODE 4910-13-P

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗