AD 2026-11528

Published 2026-06-09 · 2 models · 1,209 US-registered tails affected · Federal Register

Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Federal Register ↗

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.

Applicability · by US fleet size

PILATUS PC-12/47E TCDS A78EU 831 tails
PILATUS PC-12/45 TCDS A78EU 378 tails

Compliance instructions

Required actions, compliance times, parts/serial numbers and methods of compliance are in the Federal Register publication — not paraphrased here. Read AD on Federal Register ↗