As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH FUEL DRAINED OUT OF LT AND RT INBOARD TANKS, HAD ONE-FOURTH TANK INDICATIONS ON FUEL GAUGES (INBOARD TANK). FOUND INBOARD FUEL SENDER TO BE OUT OF TOLERANCES AT EMPTY AND FULL. OUTBOARD FUEL TRANSMITTERS WERE REPLACED DUE TO FLOAT WEAR/DETERIORATION, PN 550-695, MFG PN 6427512. SUBMITTER SUGGESTS PERIODIC INSPECTION OF FUEL TRANSMITTER FOR FLOAT WEAR AND TOLERANCES IS RECOMMENDED.