What was found
PDX - AIRCRAFT DIVERTED TO PDX WHEN THE CREW NOTICED SMOKE IN THE CABIN AND COCKPIT. MAINTENANCE INSPECTED THE AIRCRAFT, RAN BOTH ENGINES AT 70 PERCENT TORQUE FOR 30 MINUTES WITH BLEEDS ON AND DUCT TEMPERATURE BETWEEN 65-70 DEGREES. NO ABNORMAL SMELLS WERE NOTED. AIR CYCLE MACHINE OIL LEVEL WAS GOOD. DO DEFECTS OR SMELLS. NO PARTS WERE REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.