As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ANNUAL INSPECTION, FUEL LEAK WAS NOTED FROM LT WING. EXTENSIVE CHECKING SHOWED LEAKS FROM BOTH INBOARD AND OUTBOARD FUEL SENDERS. SENDERS WERE FOUND TO BE BADLY ROTTED AND CORRODED, BUT WERE STILL OPERATING AND INDICATING PROPERLY. REPLACING SENDER UNITS AND GASKETS CORRECTED THE FUEL LEAK PROBLEM. CAUSE, DETERIORATION OF SEALANT USED WHEN FACTORY BUILT.