Service difficulty report · Scavenge Pump · Boeing 747422

Difficulty date
May 20, 2013
Submitted
May 22, 2013
Operation
Air carrier
Aircraft
N199UA
Make and model
Boeing 747422
Aircraft serial
28717
Aircraft time
63,535 hours, 7,399 cycles
Engine
Pwa PW4056
Part
Scavenge Pump
Condition
Inoperative
Location
Fuel System
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

2.5K FUEL STUCK IN CENTER TANK DEF IAW MEL. MEL MAINT PROC ACPD. STRAINER CLEANED AND STOWED IN PARTS BIN AT DOOR 2L. PARTS: 750-3766, M25988-1-126 (PACKING) - CENTER HYD-MECHANICAL SCAVENGE PUMP INOPERATIVE.