AD 83-21-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Wytwornia Sprzetu Komunikacyjnego | PZL-3S | WYTWORNIA SPRZETU KOMUNIKACYJNEGO "PZL-RZESZOW" Model PZL-3S Engine |
Unsafe Condition
In-flight propeller loss due to operation of PZL-3S engine with Dowty Rotol CR 289/3-110-F/1, F/11, or F/12 propellers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Prohibit operation of PZL-3S engine with specified propellers. Inspect engines previously used with those propellers for wear on rear crankshaft, rear counterweight, rear counterweight pins, front crankshaft, crankshaft nut, and propeller shaft before further operation with other propellers. Remove engines showing unusual wear or damage from service, inspect for secondary damage, and repair as needed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to further operation
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Affected Aircraft
Wytwornia Sprzetu Komunikacyjnego PZL-3S engine with Dowty Rotol CR 289/3-110-F/1, F/11, or F/12 propellers
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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