# Proposed AD 95-NM-91-AD: McDonnell Douglas Model DC-9-80 Series Airplanes and Model MD-88 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 96-01-09
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 26, 1995, 60 FR 49523
- Comments due: November 21, 1995
- Became: [AD 96-01-09](https://openairdocs.org/ad/96-01-09)
- Docket: 95-NM-91-AD
- FR document: 95-23808
- Official PDF: https://openairdocs.org/files/sha256/f2/b4/f2b4a9b627f87e314a1e2112ea4f74cd2052e916024b8915f33b8c2f6664f8c8 (from https://www.govinfo.gov/content/pkg/FR-1995-09-26/pdf/95-23808.pdf)
- Federal Register: https://www.federalregister.gov/documents/1995/09/26/95-23808/airworthiness-directives-mcdonnell-douglas-model-dc-9-80-series-airplanes-and-model-md-88-airplanes
- Page: https://openairdocs.org/proposed/95-NM-91-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC-9-80 series airplanes and Model MD-88 airplanes. This proposal would require installation of hydraulic line restrictors in the main landing gear (MLG), and modification of the hydraulic damper assembly of the MLG. This proposal is prompted by reports of vibration occurring in the MLG during landing; in some cases, such vibration has led to the collapse of the MLG. The actions specified by the proposed AD are intended to prevent incidents of vibration in the MLG, which can adversely affect the integrity of the MLG.

## Notices in this docket

- Sep 26, 1995: Notice of proposed rulemaking (NPRM). (first notice), FR document 95-23808, comments due Nov 21, 1995 (https://www.federalregister.gov/documents/1995/09/26/95-23808/airworthiness-directives-mcdonnell-douglas-model-dc-9-80-series-airplanes-and-model-md-88-airplanes)

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