Data / Federal rules / 2025-06186
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on April 15, 2025. Comments closed on May 30, 2025.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365N, and SA-365N1 helicopters. This proposed AD was prompted by reports of loss of tightening torque between the upper ball bearing end and the main rotor (MR) servo-control. This proposed AD would require inspecting the tightening torque and, depending on the results, taking corrective action. This proposed AD would also require reporting information. These actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-06186
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- April 15, 2025
- Comments due
- May 30, 2025
- Dates
- The FAA must receive comments on this NPRM by May 30, 2025.
- Docket
- Docket No. FAA-2025-0617; Project Identifier MCAI-2024-00331-R
- 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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|---|---|---|
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| Airspace Designations; Incorporation by Reference Amendment of FAA Order JO 7400.11M 2026-21422 | Final rule | Oct 20 |
| Airworthiness Directives; Airbus Helicopters 2026-21387 | Proposed rule | Oct 19 |
Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in April 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.