# Airworthiness Directives; Dassault Aviation Airplanes
> **Rule** · Final rule. · Published 2016-03-01 · Effective 2016-04-05 · 81 FR 10457
## Document
- **Document number:** 2016-03694
- **Category:** airworthiness
- **Manufacturer:** Dassault Aviation
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 10457
- **Publication date:** 2016-03-01
- **Effective date:** 2016-04-05
- **FAA docket:** Docket No. FAA-2015-3144
## Abstract

We are adopting a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 900EX and FALCON 2000EX airplanes. This AD was prompted by a report of significant fuel leakage at the middle position of the left outboard slat. This AD would require modifying the assembly of the slat extension mechanical stop. We are issuing this AD to prevent failure of the assembly of the slat extension mechanical stop, which if not corrected, could lead to a significant fuel leak and result in an uncontained fire.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/03/01/2016-03694/airworthiness-directives-dassault-aviation-airplanes)
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