Loose Bolts and Missing Sealant at the Fuel Boost Pump Canister to Wing Rib 6 Interface
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Owners, operators, and maintainers of all BD-500-1A10 and BD-500-1A11 aircraft should inspect the Fuel Boost Pump Canister to Wing Rib 6 interface and perform corrective actions as required following ACLP Service Bulletin BD500-282020 Issue No. 001 or later revisions. Any discovery of loose bolts, missing sealant, fuel leaks, or corrosion must be reported to Transport Canada via a Service Difficulty Report within Canada, or according to local requirements outside Canada. No specific compliance deadline is stated in the alert.
Summary
Transport Canada Civil Aviation Safety Alert CASA 2024-04 is a safety alert addressing the discovery of loose bolts and missing sealant at the Fuel Boost Pump Canister to Wing Rib 6 interface on Airbus Canada Limited Partnership aeroplanes models BD-500-1A10 and BD-500-1A11. The alert highlights potential risks related to fuel leaks and corrosion due to these issues. It applies to all serial numbers of the affected aircraft models.
What changed
This new safety alert raises awareness of the possibility of loose bolts and missing sealant at the Fuel Boost Pump Canister to Wing Rib 6 interface. It introduces recommended inspection and corrective maintenance actions as described in ACLP Service Bulletin BD500-282020 Issue No. 001 dated 2 November 2023. The alert also clarifies reporting requirements for any findings of loose bolts, missing sealant, fuel leaks, or corrosion at this interface.
Why it matters
Loose bolts and missing sealant at this critical fuel system interface can lead to fuel leaks and corrosion, which pose safety risks including potential fuel system failure. For operators, maintainers, and compliance teams, addressing these issues promptly is essential to maintain aircraft airworthiness and prevent in-service failures. The alert ensures that maintenance practices include proper inspection and sealing to protect the electrical bonding surface and fuel system integrity.
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