As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MESSAGE FUEL QTY IND L MAIN INDICATOR BLANK, RETURNED AND WENT BLANK SEVERAL TIMES. CORRECTIVE ACTION: TROUBLSHOT PER FIM 28-41 FAULT TREE 851 RANG OUT HIZ WIRES TO FTYS, NO DEFECTS FOUND. INSPECTED WIRING BEHIND FUEL QTY PROCESSOR BULK HEAD RACK NO DEFECTS FOUND. SUMPED L/WING TANK FUEL SYSTEM IAW B767 28-00 AND 12-11. REPLACED FUEL QTY PROCESSOR UNIT IAW B767 AMM 28-41 OPS CHK GOOD