# Proposed AD FAA-2022-0090: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-09-01
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 8, 2022, 87 FR 7056
- Comments due: March 25, 2022
- Became: [AD 2022-09-01](https://openairdocs.org/ad/2022-09-01)
- Docket: FAA-2022-0090 (https://www.regulations.gov/docket/FAA-2022-0090, where comments are filed)
- Project: MCAI-2021-00399-T
- FR document: 2022-02513
- Official PDF: https://openairdocs.org/files/sha256/34/44/344464b061d4b0abe0a967729baf65a9a038d78718001ce3803d986581dc76f5 (from https://www.govinfo.gov/content/pkg/FR-2022-02-08/pdf/2022-02513.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/02/08/2022-02513/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-02513-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0090

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This proposed AD was prompted by a report of smoke in the aft cabin during a maintenance activity, which an investigation determined was caused by a faulty drain line ribbon heater. This proposed AD would require a general visual inspection of all affected potable water-line ribbon heater installations and corrective actions and other specified actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 8, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-02513, comments due Mar 25, 2022 (https://www.federalregister.gov/documents/2022/02/08/2022-02513/airworthiness-directives-bombardier-inc-airplanes)

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