# Proposed AD 2000-NM-308-AD: 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

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-13-07
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 29, 2000, 65 FR 82957
- Comments due: February 12, 2001
- Became: [AD 2001-13-07](https://openairdocs.org/ad/2001-13-07)
- Docket: 2000-NM-308-AD
- FR document: 00-33344
- Official PDF: https://openairdocs.org/files/sha256/ba/fe/bafe7f57860339a77954484e6e3003e2da477a758b8b1fce5f9786a5f2cd4033 (from https://www.govinfo.gov/content/pkg/FR-2000-12-29/pdf/00-33344.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/12/29/00-33344/airworthiness-directives-boeing-model-737-300-737-400-737-500-737-600-737-700-737-800-757-200
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C8FF655179B9428C8625729E0058B3A5.0001
- Page: https://openairdocs.org/proposed/2000-NM-308-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that would apply 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 proposal would require 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.

## Notices in this docket

- Dec 29, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-33344, comments due Feb 12, 2001 (https://www.federalregister.gov/documents/2000/12/29/00-33344/airworthiness-directives-boeing-model-737-300-737-400-737-500-737-600-737-700-737-800-757-200)

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