As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FUEL GAUGE SHOWED FULL DEFLECTION WHENEVER POWER WAS ON. JUMPER WIRE CONNECTION TO RT TRANSMITTER WITH AN EMPTY TANK AND TO A NEW TRANSMITTER GOT SAME RESULT, GAUGE WAS EXCHANGED FOR NEW SURPLUS AND OPS CHECK OK FOR FULL RANGE OF TRANSMISSION FLOAT TRAVEL.