As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VISUAL INSPECTION REVEALED GOUGES IN SURFACE OF O-RING IN FEMALE QUICK DISCONNECT FUEL TANK TO BURNER HOSE COUPLING. CAUSE IS SUSPECTED TO BE IMPROPER ALIGNMENT OF COUPLING DURING MATING. SUBMITTER RECOMMENDS VISUAL INSPECTION DURING EVERY PRE-FLIGHT INSPECTION. THESE O-RINGS ARE LOCATED IN A FEMALE TEMA 3800 COUPLING PN 10105, MFG SKOVDE, SWEDEN.