AD 2008-24-51

final rule
Data completeness: 80%

Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes

AD Number
2008-24-51
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2008-1199
FR Citation
74 FR 8155

Applicability

TypeManufacturerModelDetails
aircraft Boeing 737-600 Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes

Unsafe Condition

Incorrect wiring in the autoshutoff system causes the left-hand fuel pump of the center wing tank to re-energize when the flightcrew manually turns off the pump switches, leading to extended dry-running of the fuel pump and potential localized overheating inside the fuel pump, which could produce an ignition source inside the fuel tank.

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Required Actions

Accomplish a wiring test of the autoshutoff system to verify continuity and visually verify that the wiring is correctly installed. Perform corrective actions if necessary. Conduct a functional test of the autoshutoff system and applicable maintenance actions as specified in Chapter 28, Section 28-22 of the Boeing 737-600/700/800/900 Fault Isolation Manual.

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Compliance Time

Before further flight

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Affected Aircraft

Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes on which an autoshutoff system was installed in accordance with Boeing Alert Service Bulletin 737-28A1206.

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Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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