AD 2009-04-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | AIRCRAFT LTD | Airworthiness Directives; PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes |
Unsafe Condition
During take-off with light turbulences or after rapid roll/heading attitude changes soon after take-off, both PFDs may indicate a roll attitude offset of up to 10 degrees in the same direction. This could result in an undesired bank angle.
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Required Actions
Insert the limitation 'Maximum bank angle during climb must not exceed 30 degrees' into the POH. Insert procedures into the POH's Abnormal Procedures section for handling discrepancies between the PFD and ESIS, including using the ESIS as the primary attitude reference and engaging the flight director and autopilot until the error corrects itself.
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Compliance Time
Before further flight after the effective date of this AD
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Affected Aircraft
PILATUS AIRCRAFT LTD. Model PC-12/47E airplanes, manufacturer serial number (MSN) 545 and MSN 1001 and subsequent, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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