What was found
DURING THE ENGINE PERIODIC INSPECTION THE FUEL FILTER PN 3033355 WAS INSPECTED AND REINSTALLED USING A NEW O-RING PN M25988/1-928 IAW MAINTENANCE MANUAL 731002, -TECH PUMP WHICH STATES TORQUE TO BE 30 TO 50 INCH POUNDS TORQUE TO THE FILTER BOWL. THE LEAK CHECKS PRIOR TO RELEASING THE ACFT ON 5/17/2017 WAS SATISFACTORY. ON 5/19/2017 THE ACFT LANDED FOR A FUEL STOP AND NOTED FUEL LEAKING FROM THE RT ENGINE COWLING. THE LEAK WAS TRACED TO THE ABOVE MENTIONED FUEL FILTER HOUSING WITH THE O RING PROTRUDING FROM THE HOUSING MATING SURFACES, THE LT AND RT ENGINE FILTER HOUSING’S HAD NEW SEALS INSTALLED AND ACFT CONTINUED TO DESTINATION. MANUFACTURER IS INVESTIGATING.