What was found
97-0156 - AFTER T/O CRUISE FROM TLV NR 2 ENGINE LOW OIL PRESSURE OR FILTER BYPASS LIGHT ILLUMINATED (1012Z - 0+40 EN ROUTE). ACCOMPLISHED CHECKLIST OIL PRESS PLUS QTY OK, BUT LIGHT STAYED ON PER C/L SHUTDOWN NR 2 ENG (1023Z-0+50). RETURN TLV. A/C RELEASED FOR SERV PER MEL/COL: 79-2. MAIN OIL FILTER CHECKED CLEAN, FILTER REPLACED, LOW OIL PRESS SWITCH REPLACED. BYPASS SWITCH DISCONNECTED AND SECURED. RUN UP CHECKED FOR OPERATION AND LEAKS OK.