# Airworthiness Directives; Dassault Aviation Airplanes
> **Rule** · Final rule. · Published 2018-03-07 · Effective 2018-04-11 · 83 FR 9683
## Document
- **Document number:** 2018-04260
- **Category:** airworthiness
- **Manufacturer:** Dassault Aviation
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 9683
- **Publication date:** 2018-03-07
- **Effective date:** 2018-04-11
- **FAA docket:** Docket No. FAA-2017-0909
## Abstract

We are 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 a loose screw on certain slat mechanical stop assemblies, and punctures in certain fuel caps. This AD requires a one-time inspection, and corrective action if necessary. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/03/07/2018-04260/airworthiness-directives-dassault-aviation-airplanes)
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