AD 91-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McCauley Propeller Systems | 2A34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | 2AF34C55 | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | 2D34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | B2D34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | D2A34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | D2AF34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | E2A34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
| aircraft | McCauley Propeller Systems | F2A34C | MCCAULEY ACCESSORY DIVISION, CESSNA AIRCRAFT COMPANY Model ( )2( )34C( )-( ) Series Propellers |
Unsafe Condition
Possible blade separation due to cracks in the propeller blade threaded retention area, hub blade socket threads, retention nut threads, or ferrule threads.
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Required Actions
Disassemble the propeller, perform penetrant inspection for cracks, remove and replace cracked assemblies, modify hubs to contain oil with red dye, and report any cracks found. Ferrying is allowed under FAR 21.197/199.
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Compliance Time
Within the next 100 hours, next annual inspection, or within 12 calendar months after the effective date (August 7, 1991), whichever occurs first, for propellers with greater than 900 hours or 59 calendar months since last overhaul/penetrant inspection or installation. For others, prior to accumulating 1000 hours or 60 calendar months since last overhaul/penetrant inspection or installation.
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Affected Aircraft
McCauley Model ( )2( )34C( )-( ) Series propellers with threaded retention hubs, including feathering models, on listed aircraft such as Beech, Bellanca, Cessna models (e.g., 180, 182H, 185, 206, 210, 310, 337), Fuji FA-200-180, Interceptor 200A-C, Mooney M20C-G, Navion A/B/D-H, Reims F337E-F, Transavia PL-12/T-300, and Windecker AC-7.
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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