AD 2005-11-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus | Aircraft Ltd | Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes |
Unsafe Condition
Pitch actuator sense circuitry becomes over-active during a 40-degree flight phase, leading to an abrupt nose down pitch condition when the flaps are at a 40-degree selection and the pilot disconnects the autopilot.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Insert a temporary revision into the Limitations Section of the Pilot Operating Handbook (POH) prohibiting the use of the autopilot with the flaps at the 40-degree position. Replace the pitch actuator with an improved design pitch actuator and make necessary wiring and circuit breaker changes, as applicable. Installing the improved design pitch actuator terminates the need for the temporary revision in the POH.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 18 months after the effective date of this AD, unless already done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 airplanes.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.