As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YQX FLT 716 EN ROUTE PHL TO MXP. DURING CRUISE, THE FLIGHT RECEIVED EICAS MESSAGE "LT ENG FUEL FILTER." THE FLIGHT DIVERTED TO YQX AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LT ENG FUEL DIFFERENTIAL PRESSURE SWITCH. OPERATIONALLY AND LEAK CHECKS OK. (S)