# Proposed AD FAA-2012-0641: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-05-06
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 21, 2012, 77 FR 37342
- Comments due: August 6, 2012
- Became: [AD 2013-05-06](https://openairdocs.org/ad/2013-05-06)
- Docket: FAA-2012-0641 (https://www.regulations.gov/docket/FAA-2012-0641, where comments are filed)
- Project: 2011-NM-258-AD
- FR document: 2012-15167
- Official PDF: https://openairdocs.org/files/sha256/fe/d4/fed486912de353b17b3e82e0f16c448c862e49a82b84233a358d099cfc9770af (from https://www.govinfo.gov/content/pkg/FR-2012-06-21/pdf/2012-15167.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/06/21/2012-15167/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C18A211CE0BCBB1786257A24004B75FB.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0641

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2A12 (CL-601) and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes. This proposed AD was prompted by reports of jamming/malfunctioning of the left-hand engine thrust control mechanism. This proposed AD would require modifying the left-hand engine upper core-cowl. We are proposing this AD to prevent jamming/malfunctioning of the left-hand engine thrust control mechanism, which could lead to loss of control of the airplane.

## Notices in this docket

- Jun 21, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-15167, comments due Aug 6, 2012 (https://www.federalregister.gov/documents/2012/06/21/2012-15167/airworthiness-directives-bombardier-inc-airplanes)

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