Airworthiness Directives; Airbus SAS Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Sept. 3, 2026. Document 2026-18055. Updated Nov. 6, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A350-1041 airplanes. This AD was prompted by the detection of missing chamfers under the heads of critical fasteners on the primary structure of both pylons. This AD requires an inspection of the fasteners in the affected areas and corrective actions if necessary. The FAA is issuing this AD to address the unsafe condition on these products.

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

What changed in the regulation

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

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 482 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

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

Since then:

What happens next and when

This AD is effective September 18, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-18055
Action	Final rule; request for comments.
Agencies	Transportation Department; Federal Aviation Administration
Published	Sept. 3, 2026
Effective date	Sept. 18, 2026
Comments close	Oct. 19, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-8787

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