# Airworthiness Directives; Dassault Aviation Airplanes
> **Rule** · Final rule; request for comments. · Published 2022-05-13 · Effective 2022-05-31 · 87 FR 29217
## Document
- **Document number:** 2022-10459
- **Category:** airworthiness
- **Manufacturer:** Dassault Aviation
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 87 FR 29217
- **Publication date:** 2022-05-13
- **Effective date:** 2022-05-31
- **FAA docket:** Docket No. FAA-2022-0504
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Dassault Aviation Model FALCON 2000 and FALCON 2000EX airplanes. This AD was prompted by brake system failures during landing due to a brake servo-valve failure resulting from application of an inappropriate oil type during production and maintenance. This AD requires relocating affected servo-valves and revising the existing airplane flight manual (AFM) to provide temporary information necessary to operate airplanes fitted with at least one affected brake servo-valve, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD also limits or prohibits the installation of affected brake servo-valves. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/05/13/2022-10459/airworthiness-directives-dassault-aviation-airplanes)
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