# Proposed AD FAA-2021-0696: Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-03-06
- Products: Airbus Canada Limited Partnership
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 25, 2021, 86 FR 47424
- Comments due: October 12, 2021
- Became: [AD 2022-03-06](https://openairdocs.org/ad/2022-03-06)
- Docket: FAA-2021-0696 (https://www.regulations.gov/docket/FAA-2021-0696, where comments are filed)
- Project: MCAI-2021-00032-T
- FR document: 2021-18226
- Official PDF: https://openairdocs.org/files/sha256/6d/50/6d50e49d556ffa4f658fe05d249142518642c8737081502424d8f2ebe7091e1b (from https://www.govinfo.gov/content/pkg/FR-2021-08-25/pdf/2021-18226.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/25/2021-18226/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5EA10D7A43198D808625873C00505300.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0696

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD- 500-1A11 airplanes. This proposed AD was prompted by reports of loose or disconnected powerplant FIREX interconnection hoses. This proposed AD would require replacing certain existing FIREX hose assemblies with a newly designed FIREX hose assembly, as specified in a Transport Canada Civil Aviation (TCCA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 25, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-18226, comments due Oct 12, 2021 (https://www.federalregister.gov/documents/2021/08/25/2021-18226/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c)

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