Data / Federal rules / 2026-02138
Airworthiness Directives; Bell Textron Canada Limited Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on February 3, 2026. Comments closed on March 20, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Canada Limited (BTCL) Model 407 helicopters. This proposed AD was prompted by a determination that chafing can occur at various locations on the electrical harnesses located in the aircraft instrument panel area. This proposed AD would require a one- time detailed visual inspection of the electrical harnesses for chafing and corrective actions if necessary. This proposed AD would also require rotation of the backshell cast housing of connectors of the lower engine airframe unit and installation of a wire harness bracket and support, and for certain helicopters, installation of a wire bundle sleeve. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-02138
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- February 3, 2026
- Comments due
- March 20, 2026
- Dates
- The FAA must receive comments on this NPRM by March 20, 2026.
- Docket
- Docket No. FAA-2026-0736; Project Identifier MCAI-2025-00698-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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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in February 2026
Read from the Federal Register API, last updated 2026-10-24. 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.