What was found
(CAN) DURING FLIGHT, THE OIL PRESSURE ON NR 2 ENGINE DROPPED TO ZERO AND THE OIL TEMP STARTED TO CLIMB. THE ENGINE WAS SHUTDOWN PER THE CHECKLIST. THE AIRCRAFT ACCOMPLISHED SUCCESSFUL SINGLE ENGINE LANDING. NO VISIBLE SIGNS OF OIL ON THE INSIDE OR OUTSIDE OF COWLING ON GROUND INSPECTION, THE TROUBLESHOOTING REVEALED OIL PUMP `LAST CHANCE FILTER` SHOWED DETERIORATION AND DEBRIS. THE OIL PUMP LAST CHANCE STRAINER WAS REPLACED WITH CONICAL SHAPE ELEMENT AND THE AIRCRAFT RETURNED TO SERVICE.