What was found
(CAN) DURING CLIMB NR 1 ENGINE LOST POWER, FOLLOWED BY A TORQUE DECREASE AND FLUCTUATING, THIS WAS ALSO ACCOMPANIED BY AN OIL PRESSURE LIGHT. THE CREW ELECTED TO SHUTDOWN THE ENGINE AND RETURNED TO DEPARTURE. FIRST ATTEMPT TO START THE ENGINE WAS SUCCESSFUL. ON THE SECOND START, THE OIL PRESSURE WAS SLOW TO RAISE THEN DROPPED, ENGINE WAS SHUTDOWN. INSPECTION OF THE RGB CHIP DETECTOR REVEALED METALLIC PARTICULES. ENGINE WAS REPLACED.