What was found
(CAN) OIL ODOR NOTED IN CABIN DURING CLIMB, VISIBLE SMOKE/HAZE NOTED IN CABIN AT TOP OF CLIMB, ENGINE POWER REDUCED AND SMOKE/HAZE CLEARED AND OIL ODOR REDUCED. AIRCRAFT RETURNED TO BASE WITH NO FURTHER INCIDENT. POST FLIGHT INVESTIGATION REVEALED OIL CONTAMINATION IN COMPRESSOR INLET OF RIGHT HAND ENGINE, THIS WAS DETERMINED TO BE THE CAUSE OF THE OIL GETTING INTO THE AIRCRAFT ENVIRONMENTAL SYSTEM. ENGINE REMOVED AND SENT TO MANUFACTURER FOR EVALUATION AND REPAIR. (TC# 20190428001)