As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) #1 ENGINE OIL TEMP REACHED 108 IN FLIGHT. QRH ACTIONED, POWER REDUCED AND OIL TEMP DECREASED TO 93. MAINTENANCE FOUND THE #1 ENG OIL COOLER DOOR ACTUATOR FAILED. THE ACTUATOR WAS REPLACED, TESTED SERVICEABLE AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE. (TC# 20190610006)