As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG FUEL FILT EICAS S THE PRESSURE DIFFERENCE ACROSS LEFT ENGINE FUEL FILTER IS NEAR T HE BYPASS. REMOVED AND REPLACED ENG#1 FUEL FILTER IAW AMM 73-11-02. REMOVED AND REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW AMM 73-34-01. NO FAULTS ,OPS AND LEAK CHECK GOOD THIS TIME.