As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING CRUISE, TOTAL FUEL MINUS FUEL USED DIFFERED BY AS MUCH AS 1,900 LBS. FMC FUEL PREDICTION DURING CRUISE TO DECENT DIFFERED BY AS MUCH AS 1800 LBS. TRANSFERRED 3 TIMES TO KEEP FUEL BALANCED. MAINTENANCE ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER MM 28-41-00-810-801.