What was found
DURING CLIMBOUT, EXPERIENCED NR 2 ENGINE LOW OIL PRESSURE LIGHT ILLUMINATING AND ASSOCIATED OIL PRESSURE DROP. CREW PERFORMED ENGINE SHUT-DOWN CHECKLIST. AIRCRAFT RETURNED TO MDW AND MADE AN UNEVENTFUL LANDING. REMOVED AND REPLACED NR 2 ENGINE OIL PRESSURE PUMP, TRANSMITTER, AND MAIN OIL SCREEN PER BOEING M/M.