As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENG OIL TEMP, CREW REPORTS OIL TEMP AMBER AT 163 DEG C FOR APPROXIMATELY 3 MINUTES DURING CLIMB THRUST. THRUST REDUCED TO IDLE & TEMP DROPPED TO 110 DEG WITHIN 3 MINUTES. ACFT RETURNED TO FIELD WITH ENG REMAINING AT IDLE. RAN ENG IAW TEST 17 MAX OIL TEMP NOTED AS 142 IAW AMM 79-00-00 PG 652 ENG OK TO CONTINUE IN SERVICE.