# Proposed AD FAA-2023-1997: 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 2024-10-03
- Products: Airbus Canada Limited Partnership
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 19, 2023, 88 FR 72008
- Comments due: December 4, 2023
- Became: [AD 2024-10-03](https://openairdocs.org/ad/2024-10-03)
- Docket: FAA-2023-1997 (https://www.regulations.gov/docket/FAA-2023-1997, where comments are filed)
- Project: MCAI-2023-00383-T
- FR document: 2023-22546
- Official PDF: https://openairdocs.org/files/sha256/ed/d8/edd88cc9cb17f1846018d953bbb063518a7189d36912b927f3e3e5609b9b931a (from https://www.govinfo.gov/content/pkg/FR-2023-10-19/pdf/2023-22546.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/10/19/2023-22546/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-22546-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-1997

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This proposed AD was prompted by the determination that reliance on DAL D software for flight critical fly-by-wire (FBW) rigging functions may result in undetected inaccurate positioning of the primary flight control surfaces. This proposed AD would require the use of specific issues of the aircraft maintenance publication (AMP) for electrical rigging procedures, and an electrical rigging confirmation check of primary flight control surfaces for certain airplanes, as specified in a Transport Canada AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 19, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-22546, comments due Dec 4, 2023 (https://www.federalregister.gov/documents/2023/10/19/2023-22546/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c)

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