As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMB, THE #2 OIL TEMPERATURE INCREASED INTO YELLOW (115 DEGREES). CREW LEVELLED AT 20,000 FT., BUT OIL TEMPERATURE DID NOT DECREASE. REDUCED POWER TO 4O PERCENT TORQUE AND OIL TEMPERATURE DROPPED INTO GREEN (100 DEGREES). MAINTENANCE FOUND FUEL OIL HEATER UNSERVICEABLE.