What was found
(CAN) DURING FLIGHT, ENGINE OIL PRESSURE SUDDENLY DROPPED. THE PILOT THEN PROCEEDED TO SHUTDOWN THE ENGINE AND LANDED UNEVENTFULLY AT THE SCHEDULED DESTINATION. IT WAS OBSERVED THAT DURING GROUND INSPECTION, NO OIL CAN BE SEEN THROUGH THE SIGHT GAUGE OF THE OIL TANK. THE OIL LEVEL WAS SATISFACTORY DURING PRE-FLIGHT INSPECTION AND IT WAS NOTED THAT FOR THE PREVIOUS 5 DAYS, OIL CONSUMPTION WAS NEGLIGIBLE.