# Proposed AD FAA-2015-8434: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-19-27
- Products: Bombardier
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period.
- Published: July 14, 2017, 82 FR 32496
- Comments due: January 13, 2016
- Became: [AD 2017-19-27](https://openairdocs.org/ad/2017-19-27)
- Docket: FAA-2015-8434 (https://www.regulations.gov/docket/FAA-2015-8434, where comments are filed)
- Project: 2015-NM-082-AD
- FR document: 2017-14591
- Official PDF: https://openairdocs.org/files/sha256/b8/74/b87459e7bd6ec3cb8db974facfbf4d02a84ccf5e4af5e570ec01797485a031c8 (from https://www.govinfo.gov/content/pkg/FR-2017-07-14/pdf/2017-14591.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/07/14/2017-14591/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7A0E96D443588A078625815D00569CB8.0001
- Page: https://openairdocs.org/proposed/FAA-2015-8434

## Summary

We are revising an earlier proposal for certain Bombardier, Inc., Model DHC-8-401 and -402 airplanes. This action revises the notice of proposed rulemaking (NPRM) by adding certain airplanes to the applicability and adding specified actions. We are proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these changes increase the scope of the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.

## Notices in this docket

- Jan 13, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-00171, comments due Feb 29, 2016 (https://www.federalregister.gov/documents/2016/01/13/2016-00171/airworthiness-directives-bombardier-inc-airplanes)
- Jul 14, 2017: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period., FR document 2017-14591, comments due Jan 13, 2016 (https://www.federalregister.gov/documents/2017/07/14/2017-14591/airworthiness-directives-bombardier-inc-airplanes)

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