# Proposed AD 2001-NM-237-AD: Boeing Model 767-200 and -300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Boeing
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: June 17, 2008, 73 FR 34233
- Comments due: July 14, 2008
- Docket: 2001-NM-237-AD
- FR document: E8-13579
- Official PDF: https://openairdocs.org/files/sha256/79/6e/796e314a1473b82fa202026a38e8cae7522c46f3bb14963badec5b86cbaee76b (from https://www.govinfo.gov/content/pkg/FR-2008-06-17/pdf/E8-13579.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/06/17/E8-13579/airworthiness-directives-boeing-model-767-200-and--300-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/84CBAF25C48457818625746B004CA486.0001
- Page: https://openairdocs.org/proposed/2001-NM-237-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD), applicable to certain Boeing Model 767-200 and -300 series airplanes. That proposed rule would have required replacing certain door-mounted escape slides and slide-raft assemblies with new slide-raft assemblies; replacing certain escape system latches with new latches; and modifying or replacing certain counterbalance assemblies with new counterbalance assemblies; as applicable. This new action revises the proposed rule by extending the compliance time, adding requirements to install a longer firing cable and test the valve of the inflation trigger system of the slide-raft, and, for certain airplanes, adding procedures to adjust the door counter balance systems. The actions specified by this new proposed AD are intended to prevent the escape slides and slide-rafts of the forward and mid-cabin entry and service doors from being too steep for evacuation in the event that the airplane rotates onto the aft fuselage into the extreme tip-back condition. In the extreme tip-back condition, the forward and mid-cabin exits could result in steeper sliding angles, which could cause injury to passengers and crewmembers during an emergency evacuation. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Nov 25, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-29340, comments due Jan 9, 2004 (https://www.federalregister.gov/documents/2003/11/25/03-29340/airworthiness-directives-boeing-model-767-200-and--300-series-airplanes)
- Jun 17, 2008: Supplemental notice of proposed rulemaking; reopening of comment period., FR document E8-13579, comments due Jul 14, 2008 (https://www.federalregister.gov/documents/2008/06/17/E8-13579/airworthiness-directives-boeing-model-767-200-and--300-series-airplanes)

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