As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L OIL FILTER EICAS ON CLIMB FROM FL 320 TO 360 MESSAGE DISAPPEARED AT L-O STATUS MSG REMAINS. CHECKED & REPLACED FILTER, CHECKED CHIP DETECTORS. FOUND OKAY. ACCOMPLISHED 5 MIN RUN WITH NO FAULTS. REPLACED DIFFERENTIAL OIL PRESS SWITCH. LEAK CHECK OF SWITCH TESTS OKAY.