AircraftDirectives
Airworthiness Directive

AD 2026-12-01 91 FR 34752

Federal Aviation Administration · 14 CFR part 39

FR document
2026-11528
Amendment
39-23371
Published
2026-06-09
Models covered
1
Last live check
2026-08-17

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AD

2026-12-01

FR doc 2026-11528 · 91 FR 34752

AD 2026-12-01Published 2026-06-09Effective 2026-07-14

Requires updating operational software and incorporating a pilot's operating handbook (POH) temporary revision (TR).

Full official abstract

The FAA is adopting 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 AD requires updating operational software and incorporating a pilot's operating handbook (POH) temporary revision (TR). This AD also prohibits the installation of affected software. The FAA is issuing this AD to address the unsafe condition on these products.

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Applies to 1 model in our index