Data / Federal rules / 2026-08022
Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
The Federal Aviation Administration published this final rule in the Federal Register on April 24, 2026. It took effect on May 11, 2026. Comments closed on June 8, 2026.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47G airplanes. This AD was prompted by a report that a brake shuttle valve (BSV) on a production airplane shuttled and isolated the brake line to the left- hand (LH) brake, which resulted in brake lockup. This AD requires replacement of the LH and right-hand (RH) brake pipe assemblies and also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-08022
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- April 24, 2026
- Takes effect
- May 11, 2026
- Comments due
- June 8, 2026
- Dates
- This AD is effective May 11, 2026.
- Docket
- Docket No. FAA-2026-3862; Project Identifier MCAI-2026-00317-A; Amendment 39-23319; 2026-08-11
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in April 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.