# Proposed AD 2001-NM-125-AD: McDonnell Douglas Model MD-90-30 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-11-15
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 27, 2003, 68 FR 9034
- Comments due: April 14, 2003
- Became: [AD 2003-11-15](https://openairdocs.org/ad/2003-11-15)
- Docket: 2001-NM-125-AD
- FR document: 03-4587
- Official PDF: https://openairdocs.org/files/sha256/99/dd/99dd91eba3fdae5fb2256a66432f947a28427da254bab34c5c4f1aae4e4fdfeb (from https://www.govinfo.gov/content/pkg/FR-2003-02-27/pdf/03-4587.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/02/27/03-4587/airworthiness-directives-mcdonnell-douglas-model-md-90-30-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0C31C7FE519EA18286256CDA005BC20E.0001
- Page: https://openairdocs.org/proposed/2001-NM-125-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all McDonnell Douglas Model MD-90-30 airplanes. This proposal would require replacing the lanyards on the pressure relief door for the thrust reverser with new, improved lanyards, and doing associated modifications. This action is necessary to ensure that the lanyards on the pressure relief door have adequate strength. Lanyards of inadequate strength could allow the pressure relief door to detach from the thrust reverser in the event that an engine bleed air duct bursts, which could result in the detached door striking and damaging the horizontal stabilizer, and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Feb 27, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-4587, comments due Apr 14, 2003 (https://www.federalregister.gov/documents/2003/02/27/03-4587/airworthiness-directives-mcdonnell-douglas-model-md-90-30-airplanes)

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