Airworthiness Directives; Bell Textron Canada Limited Helicopters

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Feb. 3, 2026. Document 2026-02138. Updated Nov. 15, 2026.

What it does

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.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Before this

624 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

The FAA must receive comments on this NPRM by March 20, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-02138
Action	Notice of proposed rulemaking (NPRM).
Agencies	Transportation Department; Federal Aviation Administration
Published	Feb. 3, 2026
Comments close	March 20, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-0736

Source: the Federal Register (public domain). The document in the Federal Register