# Airworthiness Directives; Lockheed Model L-1011-385 Series Airplanes
> **Rule** · Final rule. · Published 2001-04-27 · Effective 2001-06-01 · 66 FR 21072
## Document
- **Document number:** 01-10174
- **Category:** airworthiness
- **Manufacturer:** Lockheed Model L-1011-385 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 21072
- **Publication date:** 2001-04-27
- **Effective date:** 2001-06-01
- **FAA docket:** Docket No. 2000-NM-41-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Lockheed Model L-1011-385 series airplanes, that requires a visual inspection of the fuel level control switch, the fuel level control switch wiring harness, and the wiring harness conduit for damage, wear or chafing, broken or missing O-rings, or indications of electrical arcing. This amendment also requires replacement of a certain conduit in the fuel level control switch wiring harness, installation of electrical sleeving over the fuel level control switch wiring harness, and installation of the fuel level control switch which has been so modified. The actions specified by this AD are intended to prevent chafing of the fuel level control switch wiring harness, which could cause arcing and result in a fire in the fuel tank.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/04/27/01-10174/airworthiness-directives-lockheed-model-l-1011-385-series-airplanes)
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