As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 667-ATB/IFSD/DE- PERFORMED AIR TURN BACK WITH DECLARED EMERGENCY DUE TO LEFT ENGINE OIL TEMP IN THE AMBER BAND FOR 20 MINUTES. FLIGHT CREW PERFORMED IFSD PER QRH. CORRECTIVE ACTION: INSPECTED MCD'S, ALL CLEAN. DRAINED 4 QUARTS FROM MAIN GEARBOX. REPLACED GEARBOX SCAVENGE PUMP AND LSOP. PERFORMED HIGH POWER RUN WITH NO ISSUES.