What was found
DURING CLIMB, PASSING APPROX 9000 FEET, RECEIVED A LEVEL 2 MASTER CAUTION LIGHT FOR LOW OIL PRESSURE IN NR 2 ENGINE. REFERRED TO QRH. NR 2 OIL WAS IN THE RED INDICATING -2. IAW QRH NR 2 ENGINE WAS SHUTDOWN. ENGINE REMAINED SHUTDOWN FOR REMAINDER OF FLIGHT. LOWEST OIL QTY WAS 17 QTS & ENGINE WAS SHUTDOWN & WIND MILLED FOR 25 MINUTES. AT THE GATE OIL QTY WAS 21 QTS & OIL WETTING NOT ICED ON BOTTOM OF NR 2 ENGINE COWLING. NR 2 ENGINE R & R DUE TO MAIN GEARBOX FAILURE.