As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT BELIEVED FUEL WAS LOST DUE TO SIPHONING FROM FUEL CAPS. OBSERVED LIGHT FUEL STAIN BEHIND BOTH CAPS. O-RINGS APPEAR TO BE OKAY AND CAPS FEEL TIGHT. CLEANED STAINS FROM LEFT WING, FLEW AIRCRAFT, OBSERVED NO NEW STAINS. CAPS BEING REPLACED WITH MONARCH CAPS.