As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LEFT MAIN FUEL TANK QUANTITY INDICATION ERRATIC. FUEL QUANTITY SHOWS INCREASING AND DECREASING CONSTANTLY WHEN CROSS-FEEDING AND LEFT MAIN TANK FUEL PUMPS TURNED OFF. CONFIRMED LEFT FLIGHT DECK FUEL TANK INDUCTION INOPERATIVE. (OPEN).