What was found
FLT 6915 - EWR-CMH - DECLARED AN EMERGENCY AND RETURNED TO EWR DUE TO THE OIL TEMP RISING UP TO 173-174 WITH THE OIL PRESSURE DROPPING TO 48 PSI. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE IAW THE FIM DISCOVERED THAT THE ENGINE HAD BEEN OVER SERVICED. MAINTENANCE DRAINED THE EXCESS OIL. MAINTENANCE RAN THE ENGINE AT 89.1 PERCENT FOR 15 MINUTES. OP CHECKS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)