# Proposed AD FAA-2005-22632: Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-04-05
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 7, 2005, 70 FR 58631
- Comments due: November 7, 2005
- Became: [AD 2006-04-05](https://openairdocs.org/ad/2006-04-05)
- Docket: FAA-2005-22632 (https://www.regulations.gov/docket/FAA-2005-22632, where comments are filed)
- Project: 2005-NM-158-AD
- FR document: 05-20271
- Official PDF: https://openairdocs.org/files/sha256/69/eb/69ebc9c6eb9e431b418c7e7d81276260b641dcc434cd89fb321087b8d1dea944 (from https://www.govinfo.gov/content/pkg/FR-2005-10-07/pdf/05-20271.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/10/07/05-20271/airworthiness-directives-bombardier-model-cl-600-2c10-regional-jet-series-700-701-and-702
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2DB4B1CFC7011AF48625709300551E11.0001
- Page: https://openairdocs.org/proposed/FAA-2005-22632

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) airplanes. This proposed AD would require repetitive inspections for cracking or fracturing of the output links of the power control unit (PCU) for the ailerons, and related investigative and corrective actions if necessary. This proposed AD results from reports of fractured output links of the aileron PCU. We are proposing this AD to prevent failure of an output link of the aileron PCU, which, if both links on one aileron fail, could result in reduced lateral control of the airplane.

## Notices in this docket

- Oct 7, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-20271, comments due Nov 7, 2005 (https://www.federalregister.gov/documents/2005/10/07/05-20271/airworthiness-directives-bombardier-model-cl-600-2c10-regional-jet-series-700-701-and-702)

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