Service difficulty report · Scavenge Pump · Boeing 747422

Difficulty date
August 16, 2012
Submitted
August 30, 2012
Operation
Air carrier
Aircraft
N182UA
Make and model
Boeing 747422
Aircraft serial
25279
Aircraft time
88,294 hours, 10,670 cycles
Engine
Pwa PW4056
Part
Scavenge Pump
Part number
RR24680A
Part serial
586
Condition
Failed
Location
Center Fuel Cell
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CENTER FUEL TANK HAS 1100 LBS TRAPPED FUEL. REPLACED SCAVENGE PUMP AND PRESSURE SWITCH. ALL OPS CHECKED GOOD. AIR AND GROUND MODE.