# Proposed AD FAA-2020-0859: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-03-10
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 1, 2020, 85 FR 61881
- Comments due: November 16, 2020
- Became: [AD 2021-03-10](https://openairdocs.org/ad/2021-03-10)
- Docket: FAA-2020-0859 (https://www.regulations.gov/docket/FAA-2020-0859, where comments are filed)
- FR document: 2020-21565
- Official PDF: https://openairdocs.org/files/sha256/f7/47/f7479ace96085cf4221b1211c3dfaae33da618f074da5d999db5b4f78a7b24a2 (from https://www.govinfo.gov/content/pkg/FR-2020-10-01/pdf/2020-21565.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/10/01/2020-21565/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2BFB00BDE67E9B90862585F400437292.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0859

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This proposed AD was prompted by reports of failure of a certain fire detection and extinguishing (FIREX) control unit. This proposed AD would require replacing FIREX control units having a certain part number. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 1, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-21565, comments due Nov 16, 2020 (https://www.federalregister.gov/documents/2020/10/01/2020-21565/airworthiness-directives-bombardier-inc-airplanes)

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