# Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes
> **Rule** · Final rule; request for comments. · Published 2004-10-06 · Effective 2004-10-21 · 69 FR 59790
## Document
- **Document number:** 04-22266
- **Category:** airworthiness
- **Manufacturer:** Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440)
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 69 FR 59790
- **Publication date:** 2004-10-06
- **Effective date:** 2004-10-21
- **FAA docket:** Docket No. FAA-2004-19229
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This AD requires repetitive inspections for cracks, sealant damage, and corrosion of the main fittings of the main landing gear (MLG), and corrective actions if necessary. This AD is prompted by a report of a cracked main fitting of the MLG. We are issuing this AD to detect and correct fatigue cracking of the main fitting of the MLG and consequent failure of the main fitting, which could result in the collapse of the MLG.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/10/06/04-22266/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-440-airplanes)
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