AD Amdt-39-10999
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky | Aircraft Corporation Model S- 76A | Airworthiness Directives; Sikorsky Aircraft Corporation Model S- 76A, B, and C Helicopters |
Unsafe Condition
Installation of aluminum bolts on the swashplate assembly uniball bearing retainer could result in failure of the swashplate assembly, loss of the main rotor, and subsequent loss of control of the helicopter.
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Required Actions
Before further flight, perform a one-time visual inspection of the swashplate assembly uniball bearing retainer for missing bolts. Use a magnet to detect aluminum bolts. Replace missing or aluminum bolts with airworthy steel bolts.
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Compliance Time
Before further flight
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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
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