As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
'ENG 4 OIL FILT' EICAS STATUS MESSAGE DISPLAYED. NR 4 ENGINE OIL FILTER DELTA PRESSURE APPROACHES BYPASS WITH OIL TEMPERATURE ABOVE 25 DEGRESS C. CREW COMMENTS: INTERM. EICAS SAMC TEXT: REF FIM 79-00 TASK SUPPORT PAGE 306 AND FIM 79-00 FIG 103. DP SW MUST BE REPLACED WITHIN 100 HRS. REPLACED OIL FILTER DIFFERENTIAL PRESSURE SWITCH PER MM. FILTER DIFFERENTIAL PRESSURE SWITCH PER MM. REPLACED MAIN ENGINE OIL FILTER PER MM. RAN ENGINE, NO LEAKS NOTED.