As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED FUEL ODOR IN CABIN. DURING THE ANNUAL INSPECTION, HEAVY FUEL STAINING WAS NOTED IN THE SPAR BOX AND IT WAS DETERMINED THAT THE RIGID FUEL CROSS FEED LINES THAT RUN THROUGH THE FUSELAGE, INSIDE OF THE MAIN SPAR BOX, HAD CORRODED INTERNALLY RESULTING IN FUEL POOLING IN THE LOWER SPAR BOX. WATER WAS NOTED IN 1 AUXILLARY FUEL TANK; ALL OTHER FUEL TANKS WERE FREE OF WATER.