Service difficulty report · Processor · Boeing 777222

Difficulty date
August 1, 2010
Submitted
August 2, 2010
Operation
Air carrier
Aircraft
N777UA
Make and model
Boeing 777222
Aircraft serial
26916
Aircraft time
61,712 hours, 11,462 cycles
Engine
Pwa PW4077
Part
Processor
Part number
0335KPU01
Part serial
61
Condition
Malfunctioned
Location
Fuel System
Stage of operation
NR
How discovered
O
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

FUEL DISAGREE THE FLIGHT MANAGEMENT FUNCTION (FMF) DETECTS A DIFFERENCE OF GREATER THAN 9000 LBS FOR FIVE CONTINUOUS MINUTES BETWEEN THE CALCULATED AND ACTUAL FUEL QUANTITY. CREW COMMENTS: FMC TOTALIZER 10K HI. TANK AND CALC QTY AGREE. REPLACED FQPU AND NR 17LH PROBE. OPS ARE NORMAL.