AD Amdt-39-11317

final rule
Data completeness: 70%

Airworthiness Directives; Sikorsky Aircraft Corp. Model S76A, B, and C Helicopters

AD Number
Amdt-39-11317
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-SW-44-AD
FR Citation
64 FR 50442

Applicability

TypeManufacturerModelDetails
aircraft Sikorsky Aircraft Corp Airworthiness Directives; Sikorsky Aircraft Corp. Model S76A, B, and C Helicopters

Unsafe Condition

Disbonding of the attachment angle between the tail gearbox forward fairing and the pylon, leading to fairing separation and potential damage to tail rotor blades.

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

Required Actions

Conduct a visual inspection to detect disbonding of the attachment angle. Replace or repair the attachment angles as necessary.

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

Compliance Time

Before further flight.

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

Affected Aircraft

Sikorsky Aircraft Corporation Model S-76A, B, and C helicopters.

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

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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