Data / Federal rules / 2026-04526
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on March 9, 2026. Comments closed on April 23, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS 350B2, AS 350B3, EC120B, and EC 130 B4 helicopters. This proposed AD was prompted by a short-circuit due to foreign object debris (FOD) or dust inside the lighting and ancillaries control unit (LACU). This proposed AD would require repetitively cleaning and inspecting the affected LACU for FOD. Depending on the configuration of your helicopter, this proposed AD would also require modifying the emergency floatation system (EFS) activation switches and revising the existing rotorcraft flight manual (RFM) for your helicopter, which would constitute terminating action for the proposed repetitive cleaning and inspection requirements. Additionally, this proposed AD would prohibit installing an affected LACU on any helicopter unless certain requirements are met. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-04526
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- March 9, 2026
- Comments due
- April 23, 2026
- Dates
- The FAA must receive comments on this NPRM by April 23, 2026.
- Docket
- Docket No. FAA-2026-2292; Project Identifier MCAI-2024-00043-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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| Airworthiness Directives; MD Helicopters, LLC Helicopters 2026-21664 | Final rule | Oct 23 |
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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 March 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.