# Proposed AD 2003-NM-163-AD: Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-18-04
- Products: Bombardier
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: June 27, 2005, 70 FR 36862
- Comments due: July 22, 2005
- Became: [AD 2005-18-04](https://openairdocs.org/ad/2005-18-04)
- Docket: 2003-NM-163-AD
- FR document: 05-12637
- Official PDF: https://openairdocs.org/files/sha256/a7/e3/a7e3df78ba91016314081ea89fd7fbd0173f6402f685aaa3ba38706e84a953d3 (from https://www.govinfo.gov/content/pkg/FR-2005-06-27/pdf/05-12637.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/06/27/05-12637/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-440-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9E7E6A5E111AF4BB8625702D006377F8.0001
- Page: https://openairdocs.org/proposed/2003-NM-163-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, that would have required performing repetitive inspections of the electrical harnesses of the spoiler and the brake pressure sensor unit on both sides of the wing root to detect any chafing or wire damage, and repairing or replacing any damaged or chafed harness or wire with a new harness, as applicable. This new action revises the proposed rule by expanding the applicability to include additional airplanes, deleting the repetitive inspections, and by adding a terminating modification for the one-time inspection. The actions specified by this new proposed AD are intended to detect and correct chafing of the electrical cables of the spoiler and brake pressure sensor unit on both sides of the wing root, which could result in loss of flight control system and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Mar 11, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-5520, comments due Apr 12, 2004 (https://www.federalregister.gov/documents/2004/03/11/04-5520/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-440-airplanes)
- Jun 27, 2005: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 05-12637, comments due Jul 22, 2005 (https://www.federalregister.gov/documents/2005/06/27/05-12637/airworthiness-directives-bombardier-model-cl-600-2b19-regional-jet-series-100-and-440-airplanes)

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