Data / Federal rules / 2026-21387
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on October 19, 2026. Comments are due by December 3, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B3, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This proposed AD was prompted by a report of the loss of the tightening torque between the upper ball bearing end and a main rotor (MR) servo-control. This proposed AD would require an inspection of the nut tightening torque of the upper ball bearing end of all the MR servo-controls and, depending on the results, corrective actions. The proposed AD would also require reporting the inspection results. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-21387
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- October 19, 2026
- Comments due
- December 3, 2026
- Dates
- The FAA must receive comments on this NPRM by December 3, 2026.
- Docket
- Docket No. FAA-2026-11814; Project Identifier MCAI-2026-00715-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 SAS Airplanes 2026-21334 | Proposed rule | Oct 19 |
Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in October 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.