# Proposed AD FAA-2012-0328: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-16-15
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 6, 2012, 77 FR 20746
- Comments due: May 21, 2012
- Became: [AD 2012-16-15](https://openairdocs.org/ad/2012-16-15)
- Docket: FAA-2012-0328 (https://www.regulations.gov/docket/FAA-2012-0328, where comments are filed)
- Project: 2011-NM-259-AD
- FR document: 2012-8221
- Official PDF: https://openairdocs.org/files/sha256/de/b9/deb9745008e708b23787c5f664f9623db2287decb99046d1496b23186819de20 (from https://www.govinfo.gov/content/pkg/FR-2012-04-06/pdf/2012-8221.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/04/06/2012-8221/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C0D140690E03FEF3862579D800499F92.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0328

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) 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

- Apr 6, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-8221, comments due May 21, 2012 (https://www.federalregister.gov/documents/2012/04/06/2012-8221/airworthiness-directives-bombardier-inc-airplanes)

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