# Proposed AD FAA-2023-2145: Bombardier Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-01-09
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 13, 2023, 88 FR 77538
- Comments due: December 28, 2023
- Became: [AD 2024-01-09](https://openairdocs.org/ad/2024-01-09)
- Docket: FAA-2023-2145 (https://www.regulations.gov/docket/FAA-2023-2145, where comments are filed)
- Project: MCAI-2023-00358-T
- FR document: 2023-24566
- Official PDF: https://openairdocs.org/files/sha256/a2/30/a230572a805c7bdc70484e79839008534d76f299574e02fba5ccd146a82d76c3 (from https://www.govinfo.gov/content/pkg/FR-2023-11-13/pdf/2023-24566.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/11/13/2023-24566/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-24566-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-2145

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Bombardier Inc. Model BD-100-1A10 airplanes. This proposed AD was prompted by a report of a steering control unit (SCU) filter plate connector that does not meet the certification requirements for exposure of electronic components to high intensity radiated field environments, which could result in malfunction of the nose wheel steering (NWS) system. This proposed AD would require determining if the SCU is an affected SCU, replacing all affected SCUs, and rigging and testing the NWS control. This proposed AD would also prohibit installing an affected SCU on any airplane. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 13, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-24566, comments due Dec 28, 2023 (https://www.federalregister.gov/documents/2023/11/13/2023-24566/airworthiness-directives-bombardier-inc-airplanes)

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