# Proposed AD 99-NM-319-AD: Dassault Model Fan Jet Falcon Series Airplanes; Model Mystere-Falcon 20, 50, 200, and 900 Series Airplanes; and Model Falcon 10, 900EX, and 2000 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-05-20
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 9, 1999, 64 FR 68963
- Comments due: January 10, 2000
- Became: [AD 2000-05-20](https://openairdocs.org/ad/2000-05-20)
- Docket: 99-NM-319-AD
- FR document: 99-31877
- Official PDF: https://openairdocs.org/files/sha256/99/12/9912a52c0ddb2a4bbc45e5a28c7396d6c337ac0a852bcd3e64b7309dac7f4320 (from https://www.govinfo.gov/content/pkg/FR-1999-12-09/pdf/99-31877.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/12/09/99-31877/airworthiness-directives-dassault-model-fan-jet-falcon-series-airplanes-model-mystere-falcon-20-50
- Page: https://openairdocs.org/proposed/99-NM-319-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Dassault Model Fan Jet Falcon series airplanes; Model Mystere-Falcon 20, 50, 200, and 900 series airplanes; and Model Falcon 10, 900EX, and 2000 series airplanes. This proposal would require a functional test of the passenger oxygen masks, determination of the part number of the installed oxygen mask bags; and corrective action, if necessary. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to ensure that proper plastic bags of the passenger oxygen masks are installed, and that the masks are functioning properly. Improper plastic bags that have cracks or improperly functioning masks could result in insufficient oxygen to passengers in the event of rapid depressurization of the airplane.

## Notices in this docket

- Dec 9, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-31877, comments due Jan 10, 2000 (https://www.federalregister.gov/documents/1999/12/09/99-31877/airworthiness-directives-dassault-model-fan-jet-falcon-series-airplanes-model-mystere-falcon-20-50)

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