Airworthiness Directives; The Boeing Company Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Feb. 25, 2026. Document 2026-03782. Updated Nov. 14, 2026.

What it does

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes. This proposed AD was prompted by reports of cracks found on the main landing gear (MLG) support beam lower stabilizer brace aft fitting lower flange attachment holes. This proposed AD would require repetitive inspections of the MLG support beam lower stabilizer brace aft fittings for any crack; repetitive inspections of the MLG support beams and lower stabilizer braces for any damage; repetitive inspections of the MLG support beams and the upper and lower flanges of the MLG support beam lower stabilizer brace aft fittings for any crack, or repetitive inspections of the upper and lower flange surfaces of the MLG support beam lower stabilizer brace aft fittings for any crack; and applicable on-condition corrective actions. 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

656 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 April 13, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-03782
Action	Notice of proposed rulemaking (NPRM).
Agencies	Transportation Department; Federal Aviation Administration
Published	Feb. 25, 2026
Comments close	April 13, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-1339

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