As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - CREW REPORTED HIGH OIL TEMPERATURE ON NUMBER 1 ENGINE INDICATION AND FUEL TEMPERATURE ALSO HIGH. EMERGENCY DECLARED FLIGHT RETURNED PHL LANDED WITHOUT INCIDENT. CLEANED OIL TEMPERATURE CONNECTOR ON NUMBER 1 ENGINE. SYSTEM GROUND CHECK NORMAL OPERATION.