As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW NOTICED FUEL IMBALANCE AND COULD NOT MONITOR FUEL AMOUNT IN LEFT TANK DUE TO INOP FUEL GAUGE. *S/D* PERFORMED NR 2 FUEL QUANTITY INDICATING SYSTEM DRY CALIBRATION AND RESISTANCE, CAPACITANCE CHECKS OF TANK AND COMPENSATOR UNITS. FOUND PROBE F8 BAD. REPLACED PROBE. AIRCRAFT WAS RETURNED TO SERVICE.