# Airworthiness Directives; Bombardier, Inc. Airplanes
> **Rule** · Final rule. · Published 2012-11-09 · Effective 2012-12-14 · 77 FR 67267
## Document
- **Document number:** 2012-26961
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 67267
- **Publication date:** 2012-11-09
- **Effective date:** 2012-12-14
- **FAA docket:** Docket No. FAA-2012-0679
## Abstract

We are adopting 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 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 AD requires repetitive inspections to determine that cotter pins are installed at affected wing-to-fuselage attachment joints and replacement if necessary. We are issuing this AD to prevent loss of wing-to-fuselage attachment joints, which could result in the loss of the wing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/11/09/2012-26961/airworthiness-directives-bombardier-inc-airplanes)
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