What was found
(CAN) CREW REPORTS DURING CLIMB, OIL ODOR IN CABIN AS WELL AS LOSS OF MOP. CREW SHUTDOWN ENGINE AND RETURNED TO FIELD. THE LANDING WAS COMPLETED WITHOUT INCIDENT. POST FLIGHT INSPECTION FOUND OIL OBSERVED IN COMPRESSOR AREA UNDER FAN AS WELL AS 6:00 STRUT DRAIN, INTERMEDIATE CASE. THE NR 4 BEARING CARBON SEAL IS SUSPECTED. THE ENGINE WILL BE REMOVED AND SENT FOR INVESTIGATION AND REPAIR.