AD 65-06-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pacific Propeller, Inc. | A6441FN-606 | AERO PRODUCTS Model A6441FN-606 Propeller |
Unsafe Condition
Fatigue cracks in the cuff ring can cause blade failures.
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Required Actions
Inspect blades in accordance with Allison Commercial Service Letter No. 168 or an equivalent method approved by FAA. Remove the spinner assembly, fairing assemblies, blade deicing slip ring assembly, and attaching parts from the blade, clean the blade surface in the cuff ring area, and inspect for cracks using fluorescent or nonfluorescent magnetic particle process. Remove cracked blades from service and report immediately to FAA.
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Compliance Time
Compliance required as indicated, unless already accomplished. Inspections must be conducted within specified time frames based on time in service: blades with less than 750 hours' time in service on the effective date must be inspected within the next 450 hours' time in service; blades with 750 or more but less than 1,000 hours' must be inspected prior to 1,200 hours' time in service; blades with 1,000 or more but less than 1,600 hours' must be inspected within the next 200 hours' time in service; blades with 1,600 or more hours' must be inspected within the next 450 hours' time in service.
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Affected Aircraft
Pacific Propeller, Inc. Model A6441FN-606 Propeller Blades shipped from Allison before February 19, 1965, that have not been overhauled.
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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