Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2026-04-02 · Effective 2026-04-17 · 91 FR 16546
Document
Document number
2026-06465
Federal Register citation
91 FR 16546
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series
Publication date
2026-04-02
Effective date
2026-04-17
FAA docket
Docket No. FAA-2026-3470
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. This AD was prompted by the discovery that the outflow valve (OFV) direct current (DC) motor could potentially be inoperative when used in high differential pressure conditions. This AD prohibits dispatching an airplane under certain master minimum equipment list (MMEL) items and prohibits dispatching if a certain crew alerting system (CAS) message is displayed. The FAA is issuing this AD to address the unsafe condition on these products.