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PoliticsFederal rulesFederal Aviation Administration
Proposed rule

Airworthiness Directives; Textron Aviation Inc. Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register April 29, 2026. Document 2026-08322. Updated Nov. 12, 2026.

What it does

The FAA proposes to adopt a new airworthiness directive (AD) for certain Textron Aviation, Inc., Model 408 airplanes. This proposed AD was prompted by the manufacturer's revision of the aircraft maintenance manual (AMM) to add a detailed inspection for the horizontal stabilizer spar, and change the airplane serial effectivity for the vertical stabilizer spar detailed inspection. This proposed AD would require revising the Airworthiness Limitations Section (ALS) of the existing AMM or instructions for continued airworthiness (ICA) and the existing approved maintenance or inspection program, as applicable. 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

769 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 proposed AD by June 15, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-08322
ActionNotice of proposed rulemaking (NPRM).
AgenciesTransportation Department; Federal Aviation Administration
PublishedApril 29, 2026
Comments closeJune 15, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-3870

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