AD 2006-16-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | Aircraft Ltd | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
Unsafe Condition
Drill damage on some Frame 21 (FR21) lug fittings on the production line and during midlife wing lug inspections. The damage may affect the fatigue life of the wing attachment lugs on FR21.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect FR21 in the area of the outer sidewall frame attachment lug forward and aft side faces, left and right, to determine if there is any drill damage. Inspect FR21 in the area of the top surface of the wing upper-attachment lugs, left and right, for drill damage. Repair damaged FR21 according to Pilatus Aircraft Ltd. PC12 Service Bulletin No. 53-004, or contact Pilatus Aircraft Ltd. for an FAA-approved repair solution if damage exceeds specified limits.
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Compliance Time
Within 100 hours time-in-service after September 15, 2006, for the first inspection; within 100 hours time-in-service after September 18, 2006, for the second inspection. Repairs must be completed prior to further flight if damage is found.
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Affected Aircraft
Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 airplanes, manufacturer serial numbers 101 through 617 inclusive, certificated in any U.S. category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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