AD 77-26-03
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McCauley Propeller Systems | D3A34C401 | MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers |
| aircraft | McCauley Propeller Systems | D3A34C402 | MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers |
Unsafe Condition
Blade pitch control failures due to cadmium plated blade actuating pin screws (P/N A-1635-104) which may corrode or fail.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Compliance required before further flight, except under FAR 21.197 to an FAA repair station.
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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