AD 55-09-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hamilton Standard Division | 242 | HAMILTON STANDARD Model 24260 Propellers |
Unsafe Condition
Cracks occurring in several 24260 hubs when installed on Boeing 377 aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect hubs at every overhaul. Rework hubs at the earliest opportunity, but not later than the next overhaul following June 15, 1955, for hubs with 6,000 or more hours of total operating time.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than at the next overhaul following June 15, 1955
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hamilton Standard Division Model 24260 Propellers used on Boeing 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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