Attention:
Owners, Operators and Maintainers of Airbus Canada Limited Partnership (ACLP) Aeroplanes Model BD-500-1A10 and BD-500-1A11, All Serial Numbers
| File Classification No.: | Z 5000-35 |
|---|---|
| RDIMS No.: | 21220499 |
| Document No.: | CASA 2025-13 |
| Issue No.: | 01 |
| Effective Date: | 2025-12-22 |
Purpose:
The purpose of this Civil Aviation Safety Alert (CASA) is to raise awareness of possible engine events resulting from Number 4 bearing distress and to recommend actions to correct this issue.
Background:
Unscheduled engine removals and engine in-flight shut down events were experienced by operators due to debris from the number 4 bearing compartment. The review of aircraft and maintenance data shows:
- Engines transported between Mirabel, in Canada and the Airbus final assembly line located in Mobile, Alabama may have been affected.
- ODM indications were triggered on previous flights.
Recommended action:
Transport Canada (TC) recommends that owners, operators, and maintainers of all BD-500-1A10 and BD-500-1A11 aircraft carry out the inspection and corrective actions, as required, described in ACLP Operators Information Transmission (OIT) number A220-OIT-79-00-001 Revision B, dated 26 June 2024, or later revisions.
Within Canada, in accordance with the reporting requirement of Part V, subpart 21 (521) of the Canadian Aviation Regulation (CAR), owners, operators and maintainers should submit a Service Difficulty Report (SDR) to TC for the discovery of each reportable service difficulty. Outside Canada, report any such occurrence in accordance with local reporting requirements.
Contact office:
For more information concerning this issue, contact a Transport Canada Centre; or contact Liviu Badita, Continuing Airworthiness in Ottawa, by telephone at 1-1-888-663-3639, or by e-mail at TC.CAWWEBFEEDBACK-retroactionWebMDLN.TC@tc.gc.ca
Original signed by
Jenny Young
Chief, Continuing Airworthiness
National Aircraft Certification
The Transport Canada Civil Aviation Safety Alert (CASA) is used to convey important safety information and contains recommended action items. The CASA strives to assist the aviation industry's efforts to provide a service with the highest possible degree of safety. The information contained herein is often critical and must be conveyed to the appropriate office in a timely manner. The CASA may be changed or amended should new information become available.