As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5171 RECEIVED HIGH OIL TEMPERATURE INDICATION ON NR 2 ENGINE DURING CLIMBOUT OF ATL, CREW DECLARED AN EMERGENCY AND RETURNED TO THE FIELD. FOUND NR 2 ENGINE OIL OVERSERVICED, DRAINED EXCESS OIL AND PERFORMED ENGINE RUNS, OPERATION SATISFACTORY.