Data / Federal rules / 2025-15773
Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
The Federal Aviation Administration published this proposed rule in the Federal Register on August 19, 2025. Comments closed on October 3, 2025.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and Model ATR72 airplanes. This proposed AD was prompted by a design review that determined that the inspection interval of the pressure regulator and shut-off valve (PRSOV) functional test must be reduced to meet the design safety objectives, due to a risk of dormant failures. This proposed AD would require repetitive functional tests of each PRSOV, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-15773
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- August 19, 2025
- Comments due
- October 3, 2025
- Dates
- The FAA must receive comments on this proposed AD by October 3, 2025.
- Docket
- Docket No. FAA-2025-2259; Project Identifier MCAI-2025-00021-T
- 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 August 2025
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.