# Proposed AD FAA-2017-0495: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-06-02
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 31, 2017, 82 FR 24897
- Comments due: July 17, 2017
- Became: [AD 2018-06-02](https://openairdocs.org/ad/2018-06-02)
- Docket: FAA-2017-0495 (https://www.regulations.gov/docket/FAA-2017-0495, where comments are filed)
- Project: 2017-NM-017-AD
- FR document: 2017-10544
- Official PDF: https://openairdocs.org/files/sha256/08/a0/08a0449e0e473073a38cbc3faed1bc14be268d5a4e9bd6dddae1a4e3cd28e19c (from https://www.govinfo.gov/content/pkg/FR-2017-05-31/pdf/2017-10544.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/05/31/2017-10544/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7FC145800F7BE2B3862581310052181A.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0495

## Summary

We propose to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701, & 702), Model CL-600-2D15 (Regional Jet Series 705), and Model CL-600-2D24 (Regional Jet Series 900) airplanes. This proposed AD was prompted by development of a modification to prevent uncommanded rudder movement during flight. This proposed AD would require modifying the wiring harness of the yaw damper control system. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- May 31, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-10544, comments due Jul 17, 2017 (https://www.federalregister.gov/documents/2017/05/31/2017-10544/airworthiness-directives-bombardier-inc-airplanes)

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