AD 88-12-51 R1

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model DHC-8-100 Series Airplanes

AD Number
88-12-51 R1
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Bombardier Inc. DHC-8-101 Airworthiness Directives; Boeing Model DHC-8-100 Series Airplanes
aircraft Bombardier Inc. DHC-8-102 Airworthiness Directives; Boeing Model DHC-8-100 Series Airplanes
aircraft Bombardier Inc. DHC-8-103 Airworthiness Directives; Boeing Model DHC-8-100 Series Airplanes
aircraft Bombardier Inc. DHC-8-106 Airworthiness Directives; Boeing Model DHC-8-100 Series Airplanes

Unsafe Condition

Inadvertent unfeathering of the propeller during engine shutdown or fire procedures after V1 could occur.

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

Required Actions

Insert a note in the AFM's Emergency Operating Procedures Section to delay engine shutdown checks until the third segment of the takeoff path, and complete the checks sequentially and uninterrupted. Alternatively, install the propeller autofeather latching logic wiring modification per Service Bulletin 8-61-12, Rev A, to remove the AFM note requirement.

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

Compliance Time

Within 24 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

Boeing Model DHC-8-100 series airplanes, Serial Numbers 1 through 113

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

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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