# Airworthiness Directives; Bombardier, Inc., Airplanes
> **Rule** · Final rule. · Published 2021-11-03 · Effective 2021-12-08 · 86 FR 60554
## Document
- **Document number:** 2021-23869
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 60554
- **Publication date:** 2021-11-03
- **Effective date:** 2021-12-08
- **FAA docket:** Docket No. FAA-2021-0560
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by reports that the sliding bushings in the forward engine mount system were missing. This AD requires an inspection (gap check) of the front and aft engine mounts to verify the proper installation of the sliding bushings, and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/11/03/2021-23869/airworthiness-directives-bombardier-inc-airplanes)
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