# Proposed AD 96-NM-230-AD: Dassault Model Mystere-Falcon 50 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-15-07
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 5, 1997, 62 FR 42077
- Comments due: September 15, 1997
- Became: [AD 98-15-07](https://openairdocs.org/ad/98-15-07)
- Docket: 96-NM-230-AD
- FR document: 97-20539
- Official PDF: https://openairdocs.org/files/sha256/2a/4e/2a4eb64e54227d753ec0835d8c946971f35d0983f04ee2bb20b9f518985ce90f (from https://www.govinfo.gov/content/pkg/FR-1997-08-05/pdf/97-20539.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/08/05/97-20539/airworthiness-directives-dassault-model-mystere-falcon-50-series-airplanes
- Page: https://openairdocs.org/proposed/96-NM-230-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Dassault Model Mystere- Falcon 50 series airplanes. This proposal would require installation of a reinforcement fitting at the junction of the baggage floor and frame 35 on both the left and right-hand sides of the airplane. This proposal is prompted by a report that, during fatigue testing, fatigue cracking was found in the subject areas due to insufficient reinforcement. The actions specified by the proposed AD are intended to prevent such fatigue cracking, which could result in reduced structural integrity of the airframe.

## Notices in this docket

- Aug 5, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-20539, comments due Sep 15, 1997 (https://www.federalregister.gov/documents/1997/08/05/97-20539/airworthiness-directives-dassault-model-mystere-falcon-50-series-airplanes)

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