# Proposed AD 2002-NM-333-AD: McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; DC-9-20, DC-9-30, DC-9-40, DC-9-50 Series Airplanes; DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) Airplanes; and Model MD-88 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-25-14
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 11, 2004, 69 FR 26052
- Comments due: June 25, 2004
- Became: [AD 2004-25-14](https://openairdocs.org/ad/2004-25-14)
- Docket: 2002-NM-333-AD
- FR document: 04-10696
- Official PDF: https://openairdocs.org/files/sha256/56/84/568499bc7a672eec7537d700a6106cf56859784197cf63a29ea8f0c5a273c62b (from https://www.govinfo.gov/content/pkg/FR-2004-05-11/pdf/04-10696.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/05/11/04-10696/airworthiness-directives-mcdonnell-douglas-model-dc-9-14-dc-9-15-and-dc-9-15f-airplanes-dc-9-20
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FA7677710D636DBC86256E9100589018.0001
- Page: https://openairdocs.org/proposed/2002-NM-333-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas airplane models. This proposal would require an inspection of the retract cylinder support fitting and the cylinder bore of the support fitting of both main landing gear (MLG) for corrosion, and corrective action, if necessary. This proposal would also require replacing cadmium-plated retract cylinder support bushings and bearings of both MLG. This action is necessary to detect and correct corrosion to the retract cylinder support fitting of the MLG and the cylinder bore in the support fitting, which could result in compromised integrity of the retract cylinder support fitting of the MLG and possible damage to the hydraulic system. This action is intended to address the identified unsafe condition.

## Notices in this docket

- May 11, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-10696, comments due Jun 25, 2004 (https://www.federalregister.gov/documents/2004/05/11/04-10696/airworthiness-directives-mcdonnell-douglas-model-dc-9-14-dc-9-15-and-dc-9-15f-airplanes-dc-9-20)

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