What was found
(CAN) AIRCRAFT WAS ENROUTE FROM CALGARY TO WINNIPEG WHEN THE RIGHT HAND ENGINE EXPERIENCED A LOSS OF ENGINE OIL. THE CREW SHUT DOWN THE ENGINE WHEN THE OIL PRESSURE STARTED TO DROP AND THE ENGINE OIL TEMPERATURE BEGAN TO CLIMB. THE OIL APPEARED TO HAVE LEAKED FROM THE OIL FITTING ATTACH HOUSING IN THE GEAR CASE JUST ABOVE THE MAIN ENGINE OIL FILTER. THE MAIN ENGINE GEARBOX WAS REPLACED SO IT COULD BE SENT OUT FOR REPAIRS.