Service difficulty report · Computer · Boeing 767322

Difficulty date
January 2, 2013
Submitted
January 14, 2013
Operation
Air carrier
Aircraft
N643UA
Make and model
Boeing 767322
Aircraft serial
25093
Aircraft time
92,959 hours, 14,700 cycles
Engine
Pwa PW4060
Part
Computer
Part number
S242N701603
Part serial
103
Condition
Faulty
Location
Fuel System
Stage of operation
LD
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

FMC CALC FUEL > TOTALIZER AFTER TO THRU 10000FT AND > 3000 LBS ON LANDING. REFERENCE PTT SEQ 9592015, LEFT EICAS REPLACED PER CH4778. PER FIM 28-41 FAULT TREE 838 PAGE 125, SYSTEM OK IF LESS THAN 4500 LBS DIFFERENCE WHEN INITIAL FUEL LOAD IS GREATER THAN 119K. FUEL LOAD OUT FOR FLT 943 CDG-ORD WAS 119.4K. BITE TEST OF FQIS SHOWS NO FAULTS.