# Proposed AD FAA-2022-1483: 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 2023-16-03
- Products: Airbus Canada Limited Partnership
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 25, 2022, 87 FR 72416
- Comments due: January 9, 2023
- Became: [AD 2023-16-03](https://openairdocs.org/ad/2023-16-03)
- Docket: FAA-2022-1483 (https://www.regulations.gov/docket/FAA-2022-1483, where comments are filed)
- Project: MCAI-2022-00435-T
- FR document: 2022-25695
- Official PDF: https://openairdocs.org/files/sha256/be/16/be164b69509f0425ccaa638783ef7aa64e34ffebdbd2d9a062c4ff248fb9ad3a (from https://www.govinfo.gov/content/pkg/FR-2022-11-25/pdf/2022-25695.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/11/25/2022-25695/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-25695-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-1483

## 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 a report from the supplier of a manufacturing quality escape in which some sensing elements were manufactured with insufficient salt fill. This could result in an inability to detect hot bleed air leaks. This proposed AD would require, depending on airplane serial number, reviewing the airplane maintenance records for affected bleed leak detection system sensing elements, testing the sensing elements, replacing those that fail, and witness marking those that pass, as specified in a Transport Canada Civil Aviation (TCCA) AD, which is proposed for incorporation by reference. This proposed AD would also prohibit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 25, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-25695, comments due Jan 9, 2023 (https://www.federalregister.gov/documents/2022/11/25/2022-25695/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c)

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