# Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, and -40 Series Airplanes
> **Rule** · Final rule. · Published 2001-12-12 · Effective 2002-01-16 · 66 FR 64138
## Document
- **Document number:** 01-30189
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 64138
- **Publication date:** 2001-12-12
- **Effective date:** 2002-01-16
- **FAA docket:** Docket No. 99-NM-288-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-10, -20, -30, and - 40 series airplanes, that requires rework and reidentification of certain reflector assemblies of the passenger ceiling lights; and installation of a support channel above the reflector, as applicable. This amendment is prompted by reports of heat damaged lamp reflectors and scorched insulation blankets in the main cabin due to the lamps inside the reflectors creating high temperatures. The actions specified by this AD are intended to prevent overheating of the lamp reflectors, which could result in smoke and fire in the main cabin.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/12/12/01-30189/airworthiness-directives-mcdonnell-douglas-model-dc-9-10--20--30-and--40-series-airplanes)
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