What was found
EN-ROUTE, AN OIL SMELL WAS PRESENT IN THE CABIN, ON TAKEOFF AND DESCENT, DURING THE FERRY FLIGHT. THE RT ENGINE HIGH SPEED GEARBOX RADIAL DRIVE SHAFT OIL SEAL HAD BEEN REPLACED PRIOR TO DEPARTURE. AFTER ARRIVAL, MX INSPECTED THE RT ENGINE AND FOUND NO OIL LEAKAGE. ACCOMPLISHED CABIN ODOR T/S, NO FAULTS FOUND. ACCOMPLISHED REMOVAL OF OIL CONTAMINATION FROM AIR CONDITIONING AND PNEUMATIC SYS. ACCOMPLISHED HIGH POWER RUN, NO CABIN ODOR NOTED.