What was found
(CAN) DURING FLIGHT, THE NR 2 ENGINE LOST OIL PRESSURE PILOTS SHUTDOWN AND SECURED ENGINE. UNEVENTFUL LANDING. ON GROUND INSPECTION SHOWED LITTLE OR NO OIL IN ENGINE, OIL FILLER CAP IN PLACE, NO SIGNS OF EXTERNAL LEAK AND PROPELLER EXTREMELY DIFFICULT TO TURN. BOROSCOPE INSPECTION SHOWED NO SIGNS OF ENGINE PT BLADE OR 1ST STAGE COMPRESSOR RUB. ENGINE WILL BE SENT FOR REPAIR AND INVESTIGATION.