Airworthiness Directives › 2026-06-06

AD 2026-06-06: Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

Published March 27, 2026 · effective May 1, 2026 · 91 FR 14755 · Docket No. FAA-2025-2559

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What the FAA requires

The FAA is adopting 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 on the production line that the electrical system harnesses in lavatory A had reduced bend radii, were not properly secured, and did not meet the requirement for clearance from an oxygen supply line. This AD requires an inspection of the sleeve and electrical harness for chafing damage and incorrect installation, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

Read the full directive on the Federal Register →

Applicability

This AD applies to Airbus Canada Limited Partnership (Type Certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Model BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category, as identified in Transport Canada AD CF-2025-45, dated August 29, 2025 (Transport Canada AD CF-2025-45). (d) Subject Air Transport Association (ATA) of America Code 92, Electrical system installation. (e) Unsafe Condition This AD was prompted by the discovery on the production line that electrical system harnesses in lavatory A had reduced bend radii, were not properly secured and did not meet the requirement for clearance from an oxygen supply line. The FAA is issu

Part numbers this directive names

This directive does not name specific part numbers in its text; it applies by aircraft model. See the applicability above and the manufacturer's service bulletin it references.

Rulemaking history

  • Proposed rule (NPRM) published September 29, 2025 · read
  • Final rule published March 27, 2026, effective May 1, 2026

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

Source: Federal Register, FAA final rules under 14 CFR part 39, refreshed daily. Part numbers are extracted from the directive text by pattern and may include service-bulletin or kit numbers; the directive itself is the authority. Watch any part number on its page and we email you when a new directive or service difficulty report names it.

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