AD 2001-22-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | Aircraft Ltd | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
Unsafe Condition
Cracking at the edges of unflanged lightening holes in the front and rear end frames of the cargo doors, which could result in major structural damage to the airplane and possible loss of control.
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Required Actions
Inspect the cargo doors to identify front and rear end frames with plain lightening holes. Install reinforcing plates on any frame with plain lightening holes. Do not install cargo doors with part numbers P/N 552.30.12.051 or P/N 552.30.12.052 unless they have been inspected and modified as required.
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Compliance Time
Within 50 flight hours after December 26, 2001, for MSN 101 through 370. Prior to further flight for any cargo door found with plain lightening holes. As of December 26, 2001, for all serial numbered airplanes regarding installation of specified cargo doors.
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Affected Aircraft
Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 airplanes, all serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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