# Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; C-9 Airplanes; and Model DC-9-81, -82, and -83 Series Airplanes
> **Rule** · Final rule. · Published 2001-12-12 · Effective 2002-01-16 · 66 FR 64129
## Document
- **Document number:** 01-30193
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 64129
- **Publication date:** 2001-12-12
- **Effective date:** 2002-01-16
- **FAA docket:** Docket No. 99-NM-295-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes; C-9 airplanes; and Model DC-9-81, -82, and - 83 series airplanes. This AD requires modification of the light switch for the cargo compartment(s). This action is necessary to prevent generation of smoke and fire in a cargo compartment due to an illuminated light with a missing cover contacting cargo contents for an extended period of time. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/12/12/01-30193/airworthiness-directives-mcdonnell-douglas-model-dc-9-10--20--30--40-and--50-series-airplanes-c-9)
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