What was found
Y2PA - CREW MADE AN UNSCHEDULED LANDING AFTER ANOTHER AIRCRAFT REPORTED FUEL SIPHONING FROM RIGHT WING AFTER DEPARTURE FROM LGC. THIS WAS VERIFIED BY THE CREW. NO EMERGENCY PROCEDURES NECESSARY. AIRCRAFT RETURNED TO LGC. MECHANIC AT LGC FOUND RIGHT FUEL CAP UNSEATED. CAP WAS REMOVED AND INSPECTED WITH NO FAULTS BEING DISCOVERED. CAP WAS REINSTALLED AND SHOWED NO LEAKAGE OF PRESSURE OF FUEL DURING ENGINE RUN. AIRCRAFT RETURNED TO SERVICE. (M)