Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This AD was prompted by a report of the stall warning protection system (SWPS) engaging when not appropriate. This proposed AD would require updating operational software and incorporating
| Agency | Transportation Department, Federal Aviation Administration |
|---|---|
| Document type | Proposed Rule |
| Published | 2026-03-19 |
| Summary | The FAA proposes to adopt a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This AD was prompted by a report of the stall warning protection system (SWPS) engaging when not appropriate. This proposed AD would require updating operational software and incorporating a pilot's operating handbook (POH) temporary revision. The proposed AD would also prohibit the installation of affected software. The FAA is proposing this AD to address the unsafe condition on these products. |
| Document number | 2026-05364 |
| Official record | https://www.federalregister.gov/documents/2026/03/19/2026-05364/airworthiness-directives-pilatus-aircraft-ltd-airplanes |