AD 63-10-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McCauley Propeller Systems | 2AF36C39 | MCCAULEY Model 2AF36C39 Propellers |
Unsafe Condition
Cranking in the blade threaded shank of McCauley Model 2AF36C39 propellers equipped with Model 78BF blades or modified to Model 78BFM blades, excluding specific exceptions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace blades prior to accumulating specified flight hours based on their time in service as of the AD effective date. Prohibit continuous operation between 2,250 and 2,400 RPM and placard aircraft within 5 flight hours. Follow Service Bulletin 53 for identification and replacement, revise AFM with operating limitations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Effective May 20, 1963. Compliance required as indicated in the AD text.
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Affected Aircraft
McCauley Model 2AF36C39 propellers with Model 78BF blades or modified to Model 78BFM blades, excluding original Model 78BFM blades, those with serial numbers having a 'Y' suffix, and blades stamped 'P xxxx-3993' with a 5-digit serial number without a suffix.
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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