# Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100) and CL-600-2B16 (CL-601-3R and CL-604) Series Airplanes
> **Rule** · Final rule; request for comments. · Published 1999-05-17 · Effective 1999-05-24 · 64 FR 26653
## Document
- **Document number:** 99-12099
- **Category:** airworthiness
- **Manufacturer:** Bombardier Model CL-600-2B19 (Regional Jet Series 100) and CL-600-2B16 (CL-601-3R and CL-604) Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 64 FR 26653
- **Publication date:** 1999-05-17
- **Effective date:** 1999-05-24
- **FAA docket:** Docket No. 99-NM-99-AD
## Abstract

This document publishes in the Federal Register an amendment adopting airworthiness directive (AD) 99-09-52 that was sent previously to all known U.S. owners and operators of Bombardier Model CL-600-2B19 (Regional Jet Series 100) and CL-600-2B16 (CL-601-3R and CL-604) series airplanes by individual notices. This AD requires a one-time inspection of the cable harness of the integrated drive generator (IDG) in the right engine nacelle and the adjacent structure to verify clearances and detect chafing; a one-time inspection of both the left and right engine nacelles to detect chafing and verify clearances of the adjacent 10th stage bleed air check valve and fuel manifold pigtails; and repair or replacement of discrepant parts, if necessary. This action is prompted by reports of chafing of the insulation covering on the IDG cable harness and the main engine right fuel manifold. The actions specified by this AD are intended to detect and correct concurrent chafing of both the fuel manifold and the IDG wire and subsequent leakage of fuel, which could come in contact with live wiring and result in fire or explosion.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/05/17/99-12099/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-cl-600-2b16)
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