Airworthiness Directives; Bombardier Inc. Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Feb. 17, 2026. Document 2026-03055. Updated Nov. 14, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. The FAA previously sent this AD to all known U.S. owners and operators of these airplanes. This AD was prompted by discrepancies in the locking features on certain network interfaces. This AD requires installing locking features on certain network interfaces to prevent unapproved access to these network interfaces. 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 489 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

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

Since then:

What happens next and when

This AD is effective March 4, 2026. AD 2025-14-51, issued on July 10, 2025, which contains the requirements of this amendment, was effective upon receipt.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-03055
Action	Final rule; request for comments.
Agencies	Transportation Department; Federal Aviation Administration
Published	Feb. 17, 2026
Effective date	March 4, 2026
Comments close	April 3, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-1327

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