Attention:
Owners, operators and maintainers of Airbus Canada Limited Partnership Aeroplanes Model BD-500-1A10 and BD-500-1A11
| File Classification No.: | Z 5000-35 |
|---|---|
| RDIMS No.: | 20025277 |
| Document No.: | CASA 2024-01 |
| Issue No.: | 01 |
| Effective Date: | 2024-02-22 |
Purpose:
The purpose of this Civil Aviation Safety Alert (CASA) is to bring attention to the possible incorrect installation of the OFV coupling that can cause damage to the attachment points of the OFV and to the aircraft structure. If the OFV coupling disconnects, it could cause rapid cabin decompression.
Background:
During an inspection of the OFV coupling assembly on the final assembly line, the coupling was found to not comply with drawing requirements. The OFV coupling was mis-installed, resulting in damage to the coupling, as shown in figures below.
Figure 1
The following figure shows the correct orientation of the OFV coupling.
Recommended action:
Transport Canada recommends that owners, operators and maintainers carry out the inspection and corrective actions described in Airbus Canada Limited Partnership Service Bulletin BD500-213002 Issue 001, dated 03 October 2023, or later revisions, as required for affected BD-500-1A10 and BD-500-1A11 aeroplane serial numbers.
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 Transport Canada for the discovery of each reportable service difficulty. (Please note that if any incorrect installation or damage of the OFV coupling is found, an SDR should be submitted). 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 Scott W. Wales, Continuing Airworthiness in Ottawa, by telephone at 1-888-663-3639, by fax at 613-996-9178 or by e-mail at TC.CAWWEBFEEDBACK-retroactionWebMDLN.TC@tc.gc.ca.
Original signed by
Jenny Young
Chief, Continuing Airworthiness
National Aircraft Certification
Incorrectly installed outflow valve (OFV) coupling
(PDF, 288 KB)
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.