# Proposed AD FAA-2012-0679: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-22-10
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 11, 2012, 77 FR 40826
- Comments due: August 27, 2012
- Became: [AD 2012-22-10](https://openairdocs.org/ad/2012-22-10)
- Docket: FAA-2012-0679 (https://www.regulations.gov/docket/FAA-2012-0679, where comments are filed)
- Project: 2012-NM-063-AD
- FR document: 2012-16960
- Official PDF: https://openairdocs.org/files/sha256/de/07/de0779b36107482007efd98a91c2f025f6ff83ff3dceeced4a87bc8774563847 (from https://www.govinfo.gov/content/pkg/FR-2012-07-11/pdf/2012-16960.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/07/11/2012-16960/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/706AB35ADD27ABF086257A38004E7AEE.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0679

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by a report that certain wing-to-fuselage attachment nuts do not conform to the certification design requirements for dual locking features. This proposed AD would require repetitive inspections to determine that cotter pins are installed at affected wing-to- fuselage attachment joints and replacement if necessary. We are proposing this AD to prevent loss of wing-to-fuselage attachment joints, which could result in the loss of the wing.

## Notices in this docket

- Jul 11, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-16960, comments due Aug 27, 2012 (https://www.federalregister.gov/documents/2012/07/11/2012-16960/airworthiness-directives-bombardier-inc-airplanes)

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