# Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes
> **Rule** · Final rule; request for comments. · Published 2009-02-24 · Effective 2009-03-02 · 74 FR 8155
## Document
- **Document number:** E9-3823
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 74 FR 8155
- **Publication date:** 2009-02-24
- **Effective date:** 2009-03-02
- **FAA docket:** Docket No. FAA-2008-1199
## Abstract

This document publishes in the Federal Register an amendment adopting airworthiness directive (AD) 2008-24-51 that was sent previously to all known U.S. owners and operators of Boeing Model 737- 600, -700, -700C, -800, and -900 series airplanes by individual notices. This AD requires accomplishing a wiring test of the autoshutoff system to verify continuity and a visual verification that the wiring is correctly installed; doing corrective actions, if necessary; and doing a functional test of the autoshutoff system, and applicable maintenance actions. This AD is prompted by a report of a failure of the left-hand fuel pump of the center wing tank to shut off after being selected "OFF" by the flightcrew during flight on a Boeing Model 737-700 series airplane. Subsequent to that report, the failure was found on two additional airplanes. We are issuing this AD to prevent extended dry-running of the fuel pump, which could lead to localized overheating of parts inside the fuel pump, and which could produce an ignition source inside the fuel tank.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/02/24/E9-3823/airworthiness-directives-boeing-model-737-600--700--700c--800-and--900-series-airplanes)
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