As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU - FLT 1043 EN ROUTE STT TO CLT. ON T/O FROM STT, L ENG FUEL FILTER LIGHT ON EICAS ILLUMINATED. THE FLIGHT DIVERTED TO SJU AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE FUEL FILTER, AND LEFT ENGINE FUEL FILTER BYPASS SWITCH.