AD 99-14-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus Aircraft Limited | PC-12 | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-12/45 | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
Unsafe Condition
Directional deviation on the standby magnetic compass caused by modifications made to the airplane since manufacture, which could result in flight-path deviation during critical phases of flight.
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Required Actions
Replace and re-route the power return cables on the starter generator and generator 2. Install a placard near the standby magnetic compass with specified language. Replace the temporary revision to the pilot operating handbook (POH) with an improved procedural revision. Accomplish improved Standby Magnetic Compass Swing procedures and incorporate a temporary revision to the maintenance manual.
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Compliance Time
Within the next 100 hours
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Affected Aircraft
Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 airplanes, manufacturer serial numbers 101 through 230.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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