# Proposed AD FAA-2014-1050: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-17-08
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 23, 2015, 80 FR 3504
- Comments due: March 9, 2015
- Became: [AD 2015-17-08](https://openairdocs.org/ad/2015-17-08)
- Docket: FAA-2014-1050 (https://www.regulations.gov/docket/FAA-2014-1050, where comments are filed)
- Project: 2014-NM-123-AD
- FR document: 2015-00957
- Official PDF: https://openairdocs.org/files/sha256/e7/2d/e72da9f7be41dae40c25823ef1c5a513eda3ce5dc1f000f89e3bacad7f0ea7ab (from https://www.govinfo.gov/content/pkg/FR-2015-01-23/pdf/2015-00957.pdf)
- Federal Register: https://www.federalregister.gov/documents/2015/01/23/2015-00957/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CD8BAAE4E7EE9E9586257DD6004DCF51.0001
- Page: https://openairdocs.org/proposed/FAA-2014-1050

## 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 an in-service report of an uncommanded and unannunciated nose wheel steering during airplane pushback from the gate. This proposed AD would require installing new cable assemblies with a pull-down resistor. We are proposing this AD to prevent an uncommanded nose wheel steering during takeoff or landing in the event of an open circuit in the steering system, and possible consequent runway excursion.

## Notices in this docket

- Jan 23, 2015: Notice of proposed rulemaking (NPRM). (first notice), FR document 2015-00957, comments due Mar 9, 2015 (https://www.federalregister.gov/documents/2015/01/23/2015-00957/airworthiness-directives-bombardier-inc-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.