As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE WAS SEEN TO BE SMOKING AT STARTUP AND LOW POWER. AN INSPECTION OF THE TURBO CHARGER REVEALED THAT OIL WAS GETTING BY THE SEALS INTO THE TURBINE SECTION. THE TURBO CHARGER WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. THIS ENGINE IS ON CONDITION IAW THE MSA W1281.