Data / Federal rules / 2025-22162
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on December 8, 2025. Comments closed on January 22, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1, and SA330J helicopters. This proposed AD was prompted by reports of fatigue cracks found on arms of the tail rotor (TR) pitch change spider due to a load increase originating from degraded bearing stacks. This proposed AD would introduce reduced life limit intervals for the affected bearing stack and would require replacing the affected bearing stack before exceeding these intervals. This proposed AD would also prohibit the installation of the affected bearing stack on a helicopter, unless certain requirements are met. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-22162
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- December 8, 2025
- Comments due
- January 22, 2026
- Dates
- The FAA must receive comments on this NPRM by January 22, 2026.
- Docket
- Docket No. FAA-2025-5043; Project Identifier MCAI-2024-00780-R
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in December 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.