As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX- FLT 709 - REJECTED TAKEOFF AT 65 KTS, DUE TO OIL FILTER PRESSURE LIGHT ON NR 1 ENGINE. RETURNED TO GATE. FOUND OIL PRESSURE DIFFERENTIAL SWITCH BOTTOM SECTION FOR THE PLUG COMING APART. REPLACED SWITCH, MAIN AND SCAVENGE OIL FILTERS, ENGINE RUN UP AND CHECKED OK. (M)