# Proposed AD FAA-2016-9438: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-09-11
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 16, 2016, 81 FR 91058
- Comments due: January 30, 2017
- Became: [AD 2017-09-11](https://openairdocs.org/ad/2017-09-11)
- Docket: FAA-2016-9438 (https://www.regulations.gov/docket/FAA-2016-9438, where comments are filed)
- Project: 2016-NM-109-AD
- FR document: 2016-29671
- Official PDF: https://openairdocs.org/files/sha256/15/41/15416b2629ede0c5d77dda8ab5a7d56bdc81e5fefecca539a21f0021356d743d (from https://www.govinfo.gov/content/pkg/FR-2016-12-16/pdf/2016-29671.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/12/16/2016-29671/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8DE08259E0B606CD8625808B0054950B.0001
- Page: https://openairdocs.org/proposed/FAA-2016-9438

## 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 interruptions in the airstair door operation. This proposed AD would require repetitive inspections and modification of the handrail hardware. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 16, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-29671, comments due Jan 30, 2017 (https://www.federalregister.gov/documents/2016/12/16/2016-29671/airworthiness-directives-bombardier-inc-airplanes)

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