As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE THE FLIGHT CREW NOTICED THAT THE OIL TEMPERATURE ON THE LT ENGINE WAS CLIMBING. THE CREW TRIED TO MANUALLY CONTROL THE OIL TEMP BUT WAS UNSUCCESSFUL. THE ENGINE WAS SHUT DOWN AND THE PROP WAS FEATHERED AS A PRECAUTION. THE AIRCRAFT RETURNED TO BASE. OIL COOLER DOOR ACTUATOR WAS REPLACED WITH A SERVICEABLE UNIT, AND THE AIRCRAFT WAS RETURNED TO SERVICE.