What was found
(CAN) DURING CRUISE, THE CREW OBSERVED OIL PRESSURE FLUCTUATIONS AND ELECTED TO SHUT THE ENGINE DOWN. AN UNEVENTFUL SINGLE ENGINE LANDING WAS THEN ACCOMPLISHED AT DESTINATION. POST FLIGHT INSPECTION FOUND AND OIL LEAK FROM DAMAGED THREADS ON ONE OF THE FITTINGS ON THE OIL PRESSURE REGULATOR HOUSING. PRATT AND WHITNEY WILL INVESTIGATE TO ESTABLISH ROOT CAUSE AND PROVIDE INFORMATION TO TRANSPORT CANADA THROUGH SUBSEQUENT SERVICE DIFFICULTY REVIEW MEETING AND SUPPORTING DOCUMENTS OR OTHER AGREED UPON COMMUNICATIONS. (TC# 20160203006)