As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, PILOT EXPERIENCED A FUEL IMBALANCE THAT REQUIRED FULL AILERON TRIM TO CORRECT. ACFT RETURNED TO BASE, MX DETERMINED 1 FUEL QUANTITY INDICATOR WAS INDICATING INCORRECT FUEL QUANTITY. THE FUEL TANKS WERE SUMPED AND THE FAULTY GUAGE THEN INDICATED CORRECTLY. THE FUEL TANKS WERE TOPPED OFF AND THE GUAGES AGAIN CHECKED FOR PROPER INDICATION. THE ACFT WAS THEN RETURNED TO SERVICE.