# Airworthiness Directives; Dassault Aviation Airplanes
> **Rule** · Final rule. · Published 2023-10-03 · Effective 2023-11-07 · 88 FR 67937
## Document
- **Document number:** 2023-21717
- **Category:** airworthiness
- **Manufacturer:** Dassault Aviation
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 67937
- **Publication date:** 2023-10-03
- **Effective date:** 2023-11-07
- **FAA docket:** Docket No. FAA-2023-1402
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Dassault Aviation Model MYSTERE-FALCON 900, FALCON 900EX, FALCON 2000, and FALCON 2000EX airplanes. This AD was prompted by reports of the wing anti-icing (WAI) system leaking in the wing leading edge. This AD requires a one-time inspection of the WAI system, and corrective actions if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/10/03/2023-21717/airworthiness-directives-dassault-aviation-airplanes)
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