Lycoming Airworthiness Directives

197 ADs indexed for Lycoming aircraft.

Models

Various 4 ADs Various 4 ADs A-65-1 2 ADs A-65-12 2 ADs A-65-12F 2 ADs A-65-12FJ 2 ADs A-65-12J 2 ADs A-65-14 2 ADs A-65-14F 2 ADs A-65-14FJ 2 ADs A-65-14J 2 ADs A-65-3 2 ADs AEIO-320-E1B 2 ADs AEIO-320-E2B 2 ADs Various 2 ADs Diaphragm fuel pumps 1 AD LTIO-540-J2BD 1 AD Magnetos 1 AD TIO-540-J2BD 1 AD AIO-320-A1A 1 AD AIO-320-A1B 1 AD AIO-320-A2A 1 AD AIO-320-A2B 1 AD AIO-320-B1B 1 AD AIO-320-C1B 1 AD AIO-360-A1A 1 AD AIO-360-A1B 1 AD AIO-360-A2A 1 AD Fuel Injectors 1 AD IO-720-B1BD 1 AD IO-720-D1CD 1 AD Magnetos 1 AD TIO-540-F2BD 1 AD TIO-540-N2BD 1 AD TIO-540-R2AD 1 AD O-470-11 1 AD O-470-11-CI 1 AD O-470-11B 1 AD O-470-11B-CI 1 AD O-470-13 1 AD O-470-13A 1 AD O-470-15 1 AD O-470-2 1 AD O-470-4 1 AD O-470-A 1 AD A-65-1 1 AD A-65-12 1 AD A-65-12F 1 AD A-65-12FJ 1 AD A-65-12J 1 AD A-65-14 1 AD A-65-14F 1 AD A-65-14FJ 1 AD A-65-14J 1 AD A-65-3 1 AD GO-300-A 1 AD GO-300-B 1 AD GO-300-C 1 AD GO-300-D 1 AD GO-300-E 1 AD GO-300-F 1 AD O-470-11 1 AD O-470-11-CI 1 AD O-470-11B 1 AD O-470-11B-CI 1 AD IO-540-K1A5 1 AD IO-540-K1B5 1 AD IO-540-K1G5 1 AD O-540-B2B5 1 AD O-540-B2C5 1 AD O-540-E4B5 1 AD O-540-E4C5 1 AD O-540-G1A5 1 AD O-540-G2A5 1 AD Carburetors 1 AD O-235-C1C 1 AD O-235-H2C 1 AD O-235-L2A 1 AD O-235-L2C 1 AD O-235-N2C 1 AD O-235-P1 1 AD Carburetors 1 AD O-540-L3C5D 1 AD AEIO-320-D1B 1 AD AEIO-320-D2B 1 AD AEIO-320-E1A 1 AD AEIO-320-E2A 1 AD AEIO-360-A1A 1 AD AEIO-360-A1B 1 AD AEIO-360-A1B6 1 AD AEIO-360-A1C 1 AD AEIO-360-B1G6 1 AD AEIO-360-H1A 1 AD O-235-C2C 1 AD O-235-H2C 1 AD O-235-K2C 1 AD O-235-L2C 1 AD O-320-A2D 1 AD O-320-D1D 1 AD AEIO-320-D1B 1 AD AEIO-320-D2B 1 AD AEIO-320-E1A 1 AD AEIO-320-E1B 1 AD AEIO-320-E2A 1 AD AEIO-320-E2B 1 AD AEIO-360-B1B 1 AD AEIO-360-B1D 1 AD AEIO-360-B1F 1 AD AEIO-360-B1F6 1 AD IO-360-A1A 1 AD IO-360-A1B 1 AD IO-360-A1B6 1 AD IO-360-A1B6D 1 AD IO-360-A1C 1 AD IO-360-A1D 1 AD IO-360-A1D6 1 AD IO-360-A1D6D 1 AD IO-360-A2A 1 AD IO-360-A2B 1 AD

Recent ADs

2026-04-11 Recurring

final rule

Airworthiness Directives; Lycoming Engines

Unsafe Condition: unsafe condition on these products.

Effective: Apr 8, 2026 Category: aircraft

Why matched: Airworthiness Directives; Lycoming Engines

2024-21-02 Recurring

final rule

Airworthiness Directives; Lycoming Engines

Unsafe Condition: unsafe condition on these products.

Effective: Dec 5, 2024 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines

2022-16-03

final rule

Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

Unsafe Condition: unsafe condition on these products.

Effective: Aug 15, 2022 Category: aircraft

Why matched: Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

2022-16-03

final rule

Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

Unsafe Condition: unsafe condition on these products.

Effective: Aug 15, 2022 Category: aircraft

Why matched: Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

2022-16-03

final rule

Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

Unsafe Condition: unsafe condition on these products.

Effective: Aug 15, 2022 Category: aircraft

Why matched: Airworthiness Directives; Continental Aerospace Technologies, Inc., Lycoming Engines, and Textron Lycoming/Subsidiary of Textron, Inc. Reciprocating Engines

2022-10-02 Recurring

final rule

Airworthiness Directives; Honeywell International, Inc. (Type Certificate Previously Held by AlliedSignal, Inc. and Textron Lycoming) Turboshaft Engines

Unsafe Condition: unsafe condition on these products.

Effective: Jun 28, 2022 Category: engine Compliance: before further flight

Why matched: Airworthiness Directives; Honeywell International, Inc. (Type Certificate Previously Held by AlliedSignal, Inc. and Textron Lycoming) Turboshaft Engines

2022-10-02 Recurring

final rule

Airworthiness Directives; Honeywell International, Inc. (Type Certificate Previously Held by AlliedSignal, Inc. and Textron Lycoming) Turboshaft Engines

Unsafe Condition: unsafe condition on these products.

Effective: Jun 28, 2022 Category: engine Compliance: before further flight

Why matched: Airworthiness Directives; Honeywell International, Inc. (Type Certificate Previously Held by AlliedSignal, Inc. and Textron Lycoming) Turboshaft Engines

2022-10-02 Recurring

final rule

Airworthiness Directives; Honeywell International, Inc. (Type Certificate Previously Held by AlliedSignal, Inc. and Textron Lycoming) Turboshaft Engines

Unsafe Condition: unsafe condition on these products.

Effective: Jun 28, 2022 Category: engine Compliance: before further flight

Why matched: Airworthiness Directives; Honeywell International, Inc. (Type Certificate Previously Held by AlliedSignal, Inc. and Textron Lycoming) Turboshaft Engines

2020-25-12

final rule

Airworthiness Directives; Superior Air Parts, Inc. Engines and Lycoming Engines Reciprocating Engines With a Certain SAP Crankshaft Assembly

Unsafe Condition: unsafe condition on these products.

Effective: Jan 15, 2021 Category: engine

Why matched: Airworthiness Directives; Superior Air Parts, Inc. Engines and Lycoming Engines Reciprocating Engines With a Certain SAP Crankshaft Assembly

2017-16-11

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines

Unsafe Condition: unsafe condition on these products.

Effective: Aug 15, 2017 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines

2017-11-10 Recurring

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines

Unsafe Condition: unsafe condition on these products.

Effective: Jun 28, 2017 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines

2015-19-07

final rule

Airworthiness Directives; Lycoming Engines Fuel Injected Reciprocating Engines

Unsafe Condition: which could lead to uncontrolled engine fire, engine damage, and damage to the airplane.

Effective: Nov 3, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Fuel Injected Reciprocating Engines

2015-10-06

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation)

Unsafe Condition: which could lead to uncontrolled engine fire, harmful exhaust gases entering the cabin resulting in crew incapacitation, and damage to the airplane.

Effective: Jul 2, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation)

2015-10-06

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation)

Unsafe Condition: which could lead to uncontrolled engine fire, harmful exhaust gases entering the cabin resulting in crew incapacitation, and damage to the airplane.

Effective: Jul 2, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation)

2015-10-06

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation)

Unsafe Condition: which could lead to uncontrolled engine fire, harmful exhaust gases entering the cabin resulting in crew incapacitation, and damage to the airplane.

Effective: Jul 2, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation)

2015-02-07

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation)

Unsafe Condition: We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Lycoming Engines reciprocating engines. This AD was prompted by propeller governor shaft set screws coming loose d...

Effective: Mar 11, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation)

2015-02-07

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation)

Unsafe Condition: We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Lycoming Engines reciprocating engines. This AD was prompted by propeller governor shaft set screws coming loose d...

Effective: Mar 11, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation)

2015-02-07

final rule

Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation)

Unsafe Condition: We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Lycoming Engines reciprocating engines. This AD was prompted by propeller governor shaft set screws coming loose d...

Effective: Mar 11, 2015 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines Reciprocating Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation)

2013-22-23

final rule

Airworthiness Directives; Aermacchi S.p.A. Airplanes

Unsafe Condition: unsafe condition on an aviation product.

Effective: Dec 16, 2013 Category: engine

Why matched: Airworthiness Directives; Aermacchi S.p.A. Airplanes

2013-21-02

final rule

Airworthiness Directives; Lycoming Engines and Continental Motors, Inc. Reciprocating Engines

Unsafe Condition: We are superseding airworthiness directive (AD) 2012-24-09 for Lycoming Engines TIO-540-AK1A, and Continental Motors, Inc. (CMI) TSIO- 360-MB, TSIO-360-SB, and TSIO-360-RB reciprocating engines, wi...

Effective: Nov 13, 2013 Category: engine

Why matched: Airworthiness Directives; Lycoming Engines and Continental Motors, Inc. Reciprocating Engines

View all Lycoming ADs →