What was found
(CAN) DURING CLIMB, THE FUEL PRESSURE CAUTION LIGHT CAME ON FOR NR 2 ENGINE. CREW INFORMATION AFTER AUXILIARY PUMP SELECT OFF APPROXIMATELY 1 MINUTE LATER CAUTION LIGHT POSTED. CREW CHECKED ALL OTHER ENGINE PARAMETERS WERE NORMAL AND RETURNED TO DEPARTURE AIRPORT. ACFT LANDED WITHOUT ISSUES. ON GROUND, MAINTENANCE PERFORMED INSPECTION OF NR 2 FUEL FILTER ELEMENT FOUND METAL DEBRIS. ALSO INSPECTED FUEL HEAT INLET STRAINER AND METAL. FURTHER INSPECTION IN FUEL TANK FOUND EJECTOR PUMP FLAPPER MISSING. ACFT HAD ABOVE FILTERS REPLACED, EJECTOR PUMP AND WILL BE MONITORED WITH VISUAL INSPECTIONS OF FILTERS.