AD 2008-10-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky | Aircraft Corporation Model S-61A | Airworthiness Directives; Sikorsky Aircraft Corporation Model S-61A, S-61D, S-61E, and S-61V Helicopters |
Unsafe Condition
Reports of Number 5 engine bearing failures leading to erratic movement of the high-speed, engine-to-transmission shaft, an oil leak, an in-flight fire, and an emergency landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an electric chip detector on each engine and an on-board chip detector annunciation system. Revise the Rotorcraft Flight Manual (RFM) to include procedures for crew response to the illumination of an on-board chip detector warning light. Test the engine chip detector system at specified intervals.
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-61A, S-61D, S-61E, and S-61V 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.