# Airworthiness Directives; Bombardier, Inc., Airplanes
> **Rule** · Final rule. · Published 2019-08-15 · Effective 2019-09-19 · 84 FR 41629
## Document
- **Document number:** 2019-17502
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 84 FR 41629
- **Publication date:** 2019-08-15
- **Effective date:** 2019-09-19
- **FAA docket:** Docket No. FAA-2019-0120
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was prompted by a report of a cracked outboard spoiler actuator mounting bracket. This AD requires repetitive inspections of the outboard spoiler actuator mounting brackets, replacement of any cracked bracket, and eventual replacement of all brackets with a re-designed part that would terminate the repetitive inspections. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/08/15/2019-17502/airworthiness-directives-bombardier-inc-airplanes)
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