# Proposed AD 99-NM-89-AD: Boeing Model 757-200 and -300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-24-11
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 20, 1999, 64 FR 38846
- Comments due: September 3, 1999
- Became: [AD 99-24-11](https://openairdocs.org/ad/99-24-11)
- Docket: 99-NM-89-AD
- FR document: 99-18412
- Official PDF: https://openairdocs.org/files/sha256/5e/dc/5edc80fa191ddd4ebe3fca8d3b00dfa0f0d438793d6ebcbf43f2369eb1f2fc69 (from https://www.govinfo.gov/content/pkg/FR-1999-07-20/pdf/99-18412.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/07/20/99-18412/airworthiness-directives-boeing-model-757-200-and--300-series-airplanes
- Page: https://openairdocs.org/proposed/99-NM-89-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 757-200 and - 300 series airplanes. This proposal would require modification of the slide/raft evacuation system by installing a girt reinforcement chafing patch. This proposal is prompted by reports of holes in the inflatable area of the slide/raft evacuation system. The actions specified by the proposed AD are intended to prevent holes in the inflatable portion of the slide/raft evacuation system, which could result in the slide/raft being unusable as a raft during an emergency water landing.

## Notices in this docket

- Jul 20, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-18412, comments due Sep 3, 1999 (https://www.federalregister.gov/documents/1999/07/20/99-18412/airworthiness-directives-boeing-model-757-200-and--300-series-airplanes)

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