As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FMC MESSAGE FUEL DISAGREE PROG 2. CENTER TANK DISAGREES BY 20.0 LBS. SUMPED CENTER TANK TO ZERO. REPLACED FUEL QTY PROCESSOR IAW 28-41-08 AND ADDED KNOWN QTY TO CENTER TANK. ALL CHECKED NORMAL. PROCESSOR REPLACED DUE TO SHOP HISTORY OF CTR FUEL QTY PROBLEMS WITH NO TROUBLE FOUND. ACFT OK TO CONTINUE.