As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL FLT 710 EN ROUTE PHL TO ZRH. THE FLIGHT RETURNED TO FIELD DUE TO A NR 2 ENGINE FUEL FILTER MESSAGE. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE NR 2 ENG FUEL PRESSURE SWITCH. OPERATIONAL AND LEAK CHECKS OK. (S)