# Airworthiness Directives; Dassault Aviation Airplanes
> **Rule** · Final rule; request for comments. · Published 2015-06-30 · Effective 2015-06-30 · 80 FR 37150
## Document
- **Document number:** 2015-15860
- **Category:** airworthiness
- **Manufacturer:** Dassault Aviation
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 80 FR 37150
- **Publication date:** 2015-06-30
- **Effective date:** 2015-06-30
- **FAA docket:** Docket No. FAA-2015-1988
## Abstract

We are adopting a new airworthiness directive (AD) for all Dassault Aviation Model FALCON 2000EX airplanes. This AD requires revising the airplane flight manual to include a procedure for addressing minimum fan speed rotation (N1) values during stand-alone engine anti-ice system operation for engines equipped with certain air inlets. This AD was prompted by a quality review of recently delivered airplanes which identified a manufacturing deficiency of some engine air inlet anti-ice piccolo tubes. We are issuing this AD to detect and correct reduced performance of the engine anti-ice protection system, leading to ice accretion and ingestion into the engines, which could result in dual engine power loss and consequent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/06/30/2015-15860/airworthiness-directives-dassault-aviation-airplanes)
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