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 July 15, 2026. Document 2026-14238. Updated Nov. 8, 2026.

What it does

The FAA proposes to supersede Airworthiness Directive (AD) 2022-27-08, which applies to certain Bell Textron Canada Limited (Bell) Model 407 helicopters. AD 2022-27-08 requires inspecting the tailboom attachment structure and reporting the inspection results. Since the FAA issued AD 2022-27-08, two additional broken upper-left tailboom attachment bolts have been reported. This proposed AD would require repetitively inspecting the tail boom attachment structure, performing a torque inspection, and replacing attachment hardware. This proposed AD would also include performing a detailed inspection of the tail boom assembly and associated aft fuselage structure, which would be a terminating action to the repetitive inspection requirements. This proposed AD would also prohibit installing certain longeron assemblies. This proposed AD would also require revising the existing airworthiness limitations section (ALS) of the helicopter maintenance manual to include a new life limit for the tail boom attachment bolts. 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

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

July 15, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
July 14, 2026 Final rule. Airworthiness Directives; Bombardier, Inc., Airplanes
July 14, 2026 Final rule. Airworthiness Directives; Textron Aviation Inc. Airplanes
July 14, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Leonardo S.p.a Helicopters
July 13, 2026 Final rule; request for comments. Airworthiness Directives; The Boeing Company Airplanes
July 10, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
July 10, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
July 10, 2026 Final rule. Airworthiness Directives; Bombardier, Inc., Airplanes

Since then:

What happens next and when

The FAA must receive comments on this NPRM by August 31, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-14238
Action	Notice of proposed rulemaking (NPRM).
Agencies	Transportation Department; Federal Aviation Administration
Published	July 15, 2026
Comments close	Aug. 31, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-7220

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