What was found
(CAN) AFTER T/O, THE CREW OBSERVED THE NR 2 ENGINE INTO THE RED BAND ACCOMPANIED BY A MASTER CAUTION WARNING. THE ENGINE WAS SHUTDOWN AND THE ACFT RETURNED TO THE DEPARTURE AIRPORT WHERE AN UNEVENTFUL SINGLE ENGINE LANDING WAS ACCOMPLISHED. POST FLIGHT TROUBLESHOOTING FOUND NORMAL OIL LEVELS AND NO EVIDENCE OF LEAKS. GROUND RUNS SHOWED A NORMAL OIL PRESSURE. FURTHER TROUBLESHOOTING IS ON-GOING.