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PoliticsFederal rulesFederal Aviation Administration
Proposed rule

Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register June 29, 2026. Document 2026-13023. Updated Nov. 9, 2026.

What it does

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD- 500-1A11 airplanes. This AD was prompted by the discovery of a low clearance condition between a hydraulic motor pump harness and the airplane structure at the aft fuselage between certain frames, which was found during final airplane assembly. This proposed AD would require modification of the harness installation. 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

865 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 August 13, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-13023
ActionNotice of proposed rulemaking (NPRM).
AgenciesTransportation Department; Federal Aviation Administration
PublishedJune 29, 2026
Comments closeAug. 13, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-4669

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