AD 2012-06-06

final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2012-06-06
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2009-0908
FR Citation
77 FR 20505

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

Damage to the fuel pumps caused by electrical arcing that could introduce an ignition source in the fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace the power control relays for the fuel boost pumps and override pumps with new relays having a ground fault interrupter (GFI) feature. Conduct an electrical bonding resistance measurement for certain GFI relays to verify bonding requirements. Inspect certain screws to ensure proper installation and install longer screws if necessary.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

The Boeing Company Model 757 airplanes, as specified in the AD, with certain service bulletins or equipment configurations.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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