# Proposed AD FAA-2009-0703: Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) Airplanes, Model CL-600-2D15 (Regional Jet Series 705) Airplanes, and Model CL-600-2D24 (Regional Jet Series 900) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-08-04
- Products: Bombardier
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: January 11, 2011, 76 FR 1556
- Comments due: February 25, 2011
- Became: [AD 2011-08-04](https://openairdocs.org/ad/2011-08-04)
- Docket: FAA-2009-0703 (https://www.regulations.gov/docket/FAA-2009-0703, where comments are filed)
- Project: 2009-NM-093-AD
- FR document: 2011-368
- Official PDF: https://openairdocs.org/files/sha256/8d/17/8d1789cd95ad45f97f29b2f93611eeb6ca67f0bdd490ebbdb6cef08b7981347f (from https://www.govinfo.gov/content/pkg/FR-2011-01-11/pdf/2011-368.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/01/11/2011-368/airworthiness-directives-bombardier-inc-model-cl-600-2c10-regional-jet-series-700-701-and-702
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3423F0FB3309F02886257815004C0BCC.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0703

## Summary

We are revising an earlier NPRM for the products listed above. This action revises the earlier NPRM by expanding the scope. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

There have been four reports of loose or detached main landing gear torque link apex pin locking plate and the locking plate retainer bolt. This condition could result in torque link apex pin disengagement, heavy vibration during landing, damage to main landing gear components and subsequent main landing gear collapse. * * * * *

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Aug 5, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-18731, comments due Sep 4, 2009 (https://www.federalregister.gov/documents/2009/08/05/E9-18731/airworthiness-directives-bombardier-model-cl-600-2c10-regional-jet-series-700-701-and-702-airplanes)
- Jan 11, 2011: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2011-368, comments due Feb 25, 2011 (https://www.federalregister.gov/documents/2011/01/11/2011-368/airworthiness-directives-bombardier-inc-model-cl-600-2c10-regional-jet-series-700-701-and-702)

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