As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL FOR LANDING AT HOSPITAL PAD, MEDICAL CREW MENTIONED STRONG FUEL ODOR. AFTER SAFE LANDING AND SHUTDOWN, POSTFLIGHT DISCOVERED SHEEN BELOW NR 2 ENG COWLING, FURTHER INSP IN ENG COMPARTMENT DISCOVERED APPARENT FUEL LEAK WITH NOTICEABLE DRIPPING AFT OF THE "SQUIRREL CAGE" AND SIGNIFICANT FUEL DRAINING FROM THE DRAIN LINE BELOW THE ACFT. CONTAINER PLACED UNDER DRAIN TO LIMIT SPILLAGE. MISSION ABORTED. MECHANIC NOTIFIED. AFTER MECHANIC ARRIVAL AND INSP, MECHANIC SUSPECTS FUEL PREFERENCE VALVE.