AD 60-20-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hamilton Standard Division | 34E | HAMILTON STANDARD Models 34E60 Propellers |
Unsafe Condition
Dome cap fractures resulting in propeller overspeed and inability to feather.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect dome caps in the threaded area for crack indications using visual, dye penetrant, or magnetic particle inspection within 50 hours' time in service. Reinspect with dye penetrant or magnetic particle inspection within 200 hours' time in service if initial inspection was visual. Replace cracked caps with inspected, uncracked caps. Retighten to 350-450 foot-pounds upon reinstallation. Repeat inspections every 350 hours' time in service until P/N 565334 dome caps are installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hamilton Standard Division Models 34E60 Propellers on Douglas DC-7 Series and Boeing B-377 aircraft.
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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