Every article on this site is written by AI from official sources and checked by a second AI. How it works
Proposed ruleComments close Dec. 3, 2026

Airworthiness Directives; Airbus Helicopters

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Oct. 19, 2026. Document 2026-21387. Updated Nov. 5, 2026.

Open for public comment until Dec. 3, 2026. Comment on Regulations.gov

What it does

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B3, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This proposed AD was prompted by a report of the loss of the tightening torque between the upper ball bearing end and a main rotor (MR) servo-control. This proposed AD would require an inspection of the nut tightening torque of the upper ball bearing end of all the MR servo-controls and, depending on the results, corrective actions. The proposed AD would also require reporting the inspection results. 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

1063 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 December 3, 2026.

The agency's dates, word for word.

Document number2026-21387
ActionNotice of proposed rulemaking (NPRM).
AgenciesTransportation Department; Federal Aviation Administration
PublishedOct. 19, 2026
Comments closeDec. 3, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-11814

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