Service difficulty report · Pump · Boeing 767322

Difficulty date
August 27, 2008
Submitted
December 15, 2008
Operation
Air carrier
Aircraft
N651UA
Make and model
Boeing 767322
Aircraft serial
25389
Aircraft time
71,191 hours, 11,545 cycles
Engine
Pwa PW4060
Part
Pump
Part number
5006286C
Condition
Faulty
Location
Fuel System
Stage of operation
NR
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

BOTH MAIN TANKS FED WHILE THERE WAS 12000LBS IN CENTER TANKS. RIGHT MAIN TANK FED FASTER, IMBALANCE OF 2000LBS. SUSPECT BAD OVERRIDE PUMPS. FOUND PUMP LEAKING DURING OPS CHECK. REMOVED PUMP TO REPLACE O-RINGS. DURING INSTALLATION SHOULDER SCREW BROKE. NEEDS NEW SHOULDER SCREW AND REINSTALL PUMP. CHANGED BOTH RT AND LT OJ PUMPS. OP CHECKS & LEAK CHECK GOOD.