As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT OIL FILTER MESSAGE IN FLIGHT. MESSAGE WAS ON AND OFF FOR FIRST (2) HRS OF FLIGHT. MAIN OIL FILTER REPLACED IAW AMM. MASTER MAGNETIC CHIP DETECTOR INSP PFMD OK. CHECKED PLUG ON DIFFERENTIAL PRESSURE SWITCH OK. PFMD ENG RUN-UP WITH CREW CHECKED FOR LEAKAGE AND EICAS STATUS MSG OK. REPLACED OIL FILTER DELTA "P" SWITCH PER MM, NO MESSAGE ON ENGINE RUN, NO LEAKS NOTED.