# Airworthiness Directives; Dassault Model Mystere-Falcon 50 Series Airplanes
> **Rule** · Final rule; request for comments. · Published 2001-11-26 · Effective 2001-12-11 · 66 FR 58933
## Document
- **Document number:** 01-29342
- **Category:** airworthiness
- **Manufacturer:** Dassault Model Mystere-Falcon 50 Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 66 FR 58933
- **Publication date:** 2001-11-26
- **Effective date:** 2001-12-11
- **FAA docket:** Docket No. 2001-NM-330-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Dassault Model Mystere-Falcon 50 series airplanes. This action requires revising the Airplane Flight Manual to prohibit flight operation under reduced vertical separation minimum (RVSM). This action is necessary to prevent near misses or collision with other aircraft during flight, due to incorrect altitude information.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/11/26/01-29342/airworthiness-directives-dassault-model-mystere-falcon-50-series-airplanes)
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