As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT T2485/09OCT ORD TO AUS - NUMBER ONE ENGINE HIGH OIL TEMPERATURE INDICATION. ALL OTHER ENGINE INDICATIONS NORMAL. CREW SHUT DOWN NUMBER ONE ENGINE. DIVERTED TO DFW AND LANDED WITHOUT INCIDENT. SINGLE ENGINE TIME 25 MINUTES. FOUND OIL LEAK FROM COMBUSTION CHAMBER DRAIN TUBE. REPLACED NUMBER ONE ENGINE ON 10 OCT 2007 AT DFW. SYSTEM GROUND CHECKED NORMAL OPERATION.