# Proposed AD 2000-NM-159-AD: Boeing Model 727, 737, 757-200, 757-200CB, and 757-300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-15-01
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 15, 2001, 66 FR 10384
- Comments due: April 2, 2001
- Became: [AD 2001-15-01](https://openairdocs.org/ad/2001-15-01)
- Docket: 2000-NM-159-AD
- FR document: 01-3856
- Official PDF: https://openairdocs.org/files/sha256/23/d0/23d0502c96648c2ee081d27e7d8fe74096ad7507567ee483e68f0356a7761057 (from https://www.govinfo.gov/content/pkg/FR-2001-02-15/pdf/01-3856.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/02/15/01-3856/airworthiness-directives-boeing-model-727-737-757-200-757-200cb-and-757-300-series-airplanes
- Page: https://openairdocs.org/proposed/2000-NM-159-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 727, 737, 757-200, 757-200CB, and 757-300 series airplanes. This proposal would require modification of the latch assembly of the escape slides. For certain airplanes, this proposal would also require installation of a cover assembly on the trigger housing of the inflation cylinder on the escape slides. This action is necessary to prevent failure of an escape slide to deploy or inflate correctly, which could result in the slide being unusable during an emergency evacuation and consequent injury to passengers or airplane crewmembers. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Feb 15, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-3856, comments due Apr 2, 2001 (https://www.federalregister.gov/documents/2001/02/15/01-3856/airworthiness-directives-boeing-model-727-737-757-200-757-200cb-and-757-300-series-airplanes)

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