Fuel — Fuel Boost Pump — Loose Fasteners and Missing Brush Seal
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Airbus Canada BD-500-1A10 and BD-500-1A11 aircraft must inspect the fuel boost pump canister fasteners and perform necessary repairs following ACLP Service Bulletin BD500-282020. Initial inspections must be completed within 6 months of August 8, 2025, or based on flight hours as specified. Repeat inspections are required every 3000 hours air time thereafter to maintain compliance.
Summary
Airworthiness Directive CF-2025-37 is issued by Transport Canada and applies to Airbus Canada Limited Partnership model BD-500-1A10 and BD-500-1A11 aircraft. It addresses loose fasteners and missing brush seals on the fuel boost pump canister to wing rib 6 interface, which may cause fuel leaks and corrosion. The directive mandates inspections and corrective actions to ensure continued airworthiness.
What changed
CF-2025-37 introduces mandatory repeat inspections and rectifications of the fuel boost pump canister fasteners on affected Airbus Canada BD-500-1A10 and BD-500-1A11 aircraft. It establishes compliance timelines based on aircraft flight hours and previous inspection history, requiring inspections every 3000 hours air time or within specified timeframes. This is a new regulation responding to a fleet-wide unsafe condition.
Why it matters
This directive is critical for aviation professionals because loose fasteners and missing sealant on the fuel boost pump canister can lead to fuel leaks and electrical bonding corrosion, posing safety risks. Operators and maintenance organizations must ensure compliance to prevent potential in-flight fuel system failures. Compliance teams need to track inspection intervals to maintain regulatory adherence and aircraft safety.
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