As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAT WAS GROUNDED: UNWANTED FUEL TRANSFER L-WING TO CENTER TANK, HAPPENED MAINLY WITH FUEL QUANTITY < 35,000LBS AT A RATE OF ABOUT 500 LBS PER HOUR. TRANSFER STOPPED COMPLETELY WITH FUEL < 35,000 LBS. REMOVED AND REPLACED L/F AUTO SUMPING JET PUMP HOUSING ASSY IAW B767 AMM 28-22-06. OPS AND MIGRATION CHECKS PASSED. NO FAULTS NOTED.