# Airworthiness Directives; Boeing Model 737-300, 737-400, 737-500, 737-600, 737-700, 737-800, 757-200, 757-200PF, 757-200CB, and 757-300 Series Airplanes
> **Rule** · Final rule. · Published 2001-06-27 · Effective 2001-08-01 · 66 FR 34091
## Document
- **Document number:** 01-15934
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 34091
- **Publication date:** 2001-06-27
- **Effective date:** 2001-08-01
- **FAA docket:** Docket No. 2000-NM-308-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737-300, 737-400, 737-500, 737-600, 737-700, 737-800, 757-200, 757-200PF, 757-200CB, and 757-300 series airplanes. This AD requires a test of the two electrical circuits that close the fuel shutoff valve on the wing spar, and repair, if necessary. This action is necessary to prevent inability to shut off the flow of fuel to an engine after an uncontained engine failure, which could result in a fire spreading to other parts of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/06/27/01-15934/airworthiness-directives-boeing-model-737-300-737-400-737-500-737-600-737-700-737-800-757-200)
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