# Proposed AD FAA-2013-1067: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-20-09
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 30, 2013, 78 FR 79338
- Comments due: February 13, 2014
- Became: [AD 2014-20-09](https://openairdocs.org/ad/2014-20-09)
- Docket: FAA-2013-1067 (https://www.regulations.gov/docket/FAA-2013-1067, where comments are filed)
- Project: 2013-NM-164-AD
- FR document: 2013-31188
- Official PDF: https://openairdocs.org/files/sha256/fa/6b/fa6bbb67ae0f36d90018cdcfe07178c4bb8dbf4d109038a1df138d98ab07ef0a (from https://www.govinfo.gov/content/pkg/FR-2013-12-30/pdf/2013-31188.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/12/30/2013-31188/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/171C75CF393473D886257C510052826C.0001
- Page: https://openairdocs.org/proposed/FAA-2013-1067

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This proposed AD was prompted by reports of missing clamps that are required to provide positive separation between the alternating current (AC) feeder cables and the hydraulic line of the landing gear alternate extension. This proposed AD would require inspecting for missing clamps, and related investigative and corrective actions if necessary. We are proposing this AD to detect and correct chafing of the AC feeder cable. A chafed and arcing AC feeder cable could puncture the adjacent hydraulic line, which, in combination with the use of the alternate extension system, could result in an in-flight fire.

## Notices in this docket

- Dec 30, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-31188, comments due Feb 13, 2014 (https://www.federalregister.gov/documents/2013/12/30/2013-31188/airworthiness-directives-bombardier-inc-airplanes)

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