AD 90-20-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Polskie Zaklady Lotnieze Spolka zo.o | PZL M18 | Airworthiness Directives; Wytwornia Sprzetu Komunikacyjnego Pzl-Mielec Models M18 and M18A Series Airplanes |
| aircraft | Polskie Zaklady Lotnieze Spolka zo.o | PZL M18A | Airworthiness Directives; Wytwornia Sprzetu Komunikacyjnego Pzl-Mielec Models M18 and M18A Series Airplanes |
Unsafe Condition
Failure of the aileron control system due to cracks and deformation in the aileron hinges.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect all aileron control system hinges with a 5x magnifying glass, fluorescent penetrant, or magnetic crack detection methods. Replace cracked or damaged hinges with ECN 9183 or ECN 9187 parts. Repeat inspections every 500 hours time-in-service until all hinges are replaced.
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Compliance Time
Within the next 50 hours time-in-service after October 17, 1990, and thereafter at intervals of 500 hours time-in-service until replacement.
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Affected Aircraft
PZL-Mielec Models M18 and M18A (Dromader) serial numbers 1Z00-101 through 1Z021-07.
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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