# Proposed AD FAA-2018-0586: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-20-11
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 6, 2018, 83 FR 31496
- Comments due: August 20, 2018
- Became: [AD 2018-20-11](https://openairdocs.org/ad/2018-20-11)
- Docket: FAA-2018-0586 (https://www.regulations.gov/docket/FAA-2018-0586, where comments are filed)
- FR document: 2018-14415
- Official PDF: https://openairdocs.org/files/sha256/c2/48/c248c1aacf07c2bb04e4079ae8f26d82adfde9ee654e34783d2a60d5e6a377fd (from https://www.govinfo.gov/content/pkg/FR-2018-07-06/pdf/2018-14415.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/07/06/2018-14415/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D8DAE7B379E98490862582C2005114D1.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0586

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-300 series airplanes. This proposed AD was prompted by reports indicating that a certain emergency exit door could not be opened during maintenance. This proposed AD would require a detailed inspection of the ball bearings of an emergency exit, replacement of bearings if necessary, application of corrosion inhibiting compound (CIC), and revision of the maintenance or inspection program, as applicable. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jul 6, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-14415, comments due Aug 20, 2018 (https://www.federalregister.gov/documents/2018/07/06/2018-14415/airworthiness-directives-bombardier-inc-airplanes)

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