As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL STAINS WERE NOTICED STREAKING AFT FROM THE FILLER CAPS. SMALL AMOUNTS OF WATER WERE ALSO NOTICED WHILE SUMPING FUEL TANKS. INSPECTION REVEALED THE SEALS ON THE CAPS WERE BADLY CRACKED AND ALLOWING BOTH WATER INTO THE FUEL SYSTEM AND FUEL TO SEEP OUT IN-FLIGHT. REPLACEMENT OF THE CAP/ADAPTER ASSYS CURED BOTH PROBLEMS.