As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L ENG OIL FILTER EICAS MSG, REMOVED AND REPLACED LT ENG SCAVENGE OIL FILTER ELEMENT AND REMOVED AND REPLACED LT ENG OIL FILTER DIFFERENTIAL PRESSURE SWITCH. CHECK ALL CHIP DETECT, NO DEFECT NOTED. PERFORM HIGH POWER RUN FOR 10 MIN ALL INDICATIONS NORMAL.