Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
airworthiness · Rule · Final rule. · Published 2025-08-14 · Effective 2025-09-18 · 90 FR 39090
Document
Document number
2025-15478
Federal Register citation
90 FR 39090
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series
Publication date
2025-08-14
Effective date
2025-09-18
FAA docket
Docket No. FAA-2024-0454
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 a report of multiple in-service failures of engine feed check valves, which have resulted in fuel imbalance conditions in flight. This AD requires repetitive replacement of the left-and right-side engine feed check valves with new engine feed check valves and prohibits flight dispatch under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.