# Proposed AD FAA-2022-0687: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-18-10
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 21, 2022, 87 FR 36773
- Comments due: August 5, 2022
- Became: [AD 2022-18-10](https://openairdocs.org/ad/2022-18-10)
- Docket: FAA-2022-0687 (https://www.regulations.gov/docket/FAA-2022-0687, where comments are filed)
- Project: MCAI-2021-01405-T
- FR document: 2022-13171
- Official PDF: https://openairdocs.org/files/sha256/d2/12/d212b248df7855eb1adf3cdf27fbff3dc1e03fa689fe1e9717467bc779714285 (from https://www.govinfo.gov/content/pkg/FR-2022-06-21/pdf/2022-13171.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/06/21/2022-13171/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-13171-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0687

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This proposed AD was prompted by a determination that the baggage bay line fire extinguishing tube assembly might not have been installed with the correct torque. This proposed AD would require re-torqueing the baggage bay line fire extinguishing tube assembly to the correct torque values, and applying corrosion inhibiting compound on the discharge tubes. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 21, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-13171, comments due Aug 5, 2022 (https://www.federalregister.gov/documents/2022/06/21/2022-13171/airworthiness-directives-bombardier-inc-airplanes)

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