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Airworthiness Directive

AD 2026-12-01 91 FR 34752 Active

Federal Aviation Administration · 14 CFR part 39

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

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FR document
2026-11528
Amendment
39-23371
Published
2026-06-09
Effective
2026-07-14
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2026-12-01 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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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

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

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.

More directives for Pilatus PC-12

  1. AD 2026-15-12 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2026-10-02
  2. AD 2026-15-07 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2026-09-03
  3. AD 2026-08-11 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2026-05-11
  4. AD 2024-08-07 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2024-06-03
  5. AD 2023-12-17 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Effective 2023-08-07

All Pilatus PC-12 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index