# Proposed AD FAA-2021-0298: 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- Status: Withdrawn
- Products: Airbus Canada Limited Partnership
- Product type: Aircraft
- Action: Proposed rule; withdrawal.
- Published: August 25, 2021, 86 FR 47419
- Comments due: May 31, 2021
- Docket: FAA-2021-0298 (https://www.regulations.gov/docket/FAA-2021-0298, where comments are filed)
- Project: MCAI-2020-01549-T
- FR document: 2021-18228
- Official PDF: https://openairdocs.org/files/sha256/a5/12/a51293fafc6e7c47b73a34d44aebb89cc9c50b43fb565da25cd8fbd401ca18e4 (from https://www.govinfo.gov/content/pkg/FR-2021-08-25/pdf/2021-18228.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/25/2021-18228/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F7223340B4F498EC8625873C005053B1.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0298

## Summary

The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) that would have applied to certain Airbus Canada Limited Partnership Model BD-500- 1A10 airplanes. The NPRM would have required an inspection of the low- pressure distribution supply duct to determine the part number, and replacement if necessary, as specified in a Transport Canada Civil Aviation (TCCA) AD. Since issuance of the NPRM, the FAA has determined that the affected operator has already addressed the unsafe condition by incorporating the proposed required actions on the affected airplanes. Accordingly, the NPRM is withdrawn.

## Notices in this docket

- Apr 16, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-07564, comments due Jun 1, 2021 (https://www.federalregister.gov/documents/2021/04/16/2021-07564/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c)
- Aug 25, 2021: Proposed rule; withdrawal., FR document 2021-18228, comments due May 31, 2021 (https://www.federalregister.gov/documents/2021/08/25/2021-18228/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c)

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