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

Published

Sep 2, 2026

Comments close

Oct 19, 2026

Citation

91 FR 56377

Docket

Docket No. FAA-2026-8794, Project Identifier MCAI-2025-01464-T

Agencies

DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration

Notice of proposed rulemaking (NPRM).

Summary

The Federal Aviation Administration (FAA) is proposing a new safety rule that would replace an earlier Airworthiness Directive (AD 2021‑17‑07). The rule requires owners of certain Airbus Canada (formerly Bombardier) BD‑500‑1A10 and BD‑500‑1A11 aircraft to inspect the left and right motive‑flow flexible fuel‑line assemblies—including the hoses and surrounding shrouds—for any signs of damage, and to replace any parts that are found to be defective. The FAA issued the proposal because it has identified four additional airplanes that could be affected by the same fuel‑line problem, and it wants to ensure the same inspection and repair steps are applied to those aircraft as well. The regulation is being issued by the Department of Transportation’s FAA and applies specifically to operators, maintenance organizations, and owners of the affected Airbus Canada models. It does not impact other aircraft types or the general public, but it is intended to prevent fuel‑system failures that could compromise flight safety. The notice was published on September 2 2026 in the Federal Register (91 FR 56377). Comments on the proposal must be submitted by October 19 2026. After the comment period closes, the FAA will review the feedback, potentially revise the rule, and then issue a final AD that will become legally binding, setting a deadline by which the required inspections and repairs must be completed.

AI-generated summary — verify against the Federal Register text.

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