# Airworthiness Directives; McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and Model MD-88 Airplanes
> **Rule** · Final rule. · Published 2004-11-15 · Effective 2004-12-20 · 69 FR 65531
## Document
- **Document number:** 04-24932
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 65531
- **Publication date:** 2004-11-15
- **Effective date:** 2004-12-20
- **FAA docket:** Docket No. 2000-NM-169-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas airplanes, that requires reversing the ground stud installation of the main battery, and installing a new nameplate on the cover of the battery. This action is necessary to prevent damage to equipment or possible fire in the electrical/electronics equipment compartment due to electrical arcing between the ground stud of the main battery and adjacent structure. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/11/15/04-24932/airworthiness-directives-mcdonnell-douglas-model-dc-9-81-md-81-dc-9-82-md-82-dc-9-83-md-83-dc-9-87)
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