# Airworthiness Directives; Dassault Aviation Airplanes
> **Rule** · Final rule. · Published 2021-02-24 · Effective 2021-03-31 · 86 FR 11111
## Document
- **Document number:** 2021-03601
- **Category:** airworthiness
- **Manufacturer:** Dassault Aviation
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 11111
- **Publication date:** 2021-02-24
- **Effective date:** 2021-03-31
- **FAA docket:** Docket No. FAA-2020-0977
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2019-03- 27, which applied to all Dassault Aviation Model Falcon 10 airplanes. AD 2019-03-27 required repetitive detailed inspections of certain wing anti-ice outboard flexible hoses, and replacement of certain wing anti- ice outboard flexible hoses. This AD continues to require the actions in AD 2019-03-27, and also adds a new life limit for the improved wing anti-ice flexible hose; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a report indicating that certain wing anti-ice outboard flexible hoses were found damaged, likely resulting from the installation process, and the development of an improved wing anti-ice flexible hose. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/02/24/2021-03601/airworthiness-directives-dassault-aviation-airplanes)
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