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Final ruleTakes effect Dec. 1, 2026

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 Oct. 27, 2026. Document 2026-21861. Updated Nov. 5, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A330-941 airplanes. This AD was prompted by an occurrence of a triple "PRIM FAULT" in the Flight Control Primary Computer (FCPC) at touchdown. This AD requires the installation of a new FCPC standard and applicable concurrent modifications. This AD also prohibits the installation of certain parts. 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

Compared with

The Federal Aviation Administration has published 476 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

1075 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective December 1, 2026. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of December 1, 2026.

The agency's dates, word for word.

Document number2026-21861
ActionFinal rule.
AgenciesTransportation Department; Federal Aviation Administration
PublishedOct. 27, 2026
Effective dateDec. 1, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-8782

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