What was found
(CAN) IN CLIMB, THROUGH 15,000 FT CREW GOT NR 2 ENG OIL PRESSURE MASTER CAUTION ANNUNCIATOR. THEY OPERATED AT FLIGHT IDLE IAW QRH UNTIL OIL PRESSURE STARTED TO DECREASE BELOW 50 PSI. ENGINE RT WAS THEN SHUTDOWN IN FLIGHT. ENGINE LOST 9 QUARTS OF OIL. FOUND OIL COMING OUT OF GAS GENERATOR AND TURBINE SUPPORT CASE DRAINS. ALSO, FOUND OIL LEAKAGE INTERNALLY IN THE INTERCOMPRESSOR CASE SECTION. AFTER CONSOLTATION REPRESENTITIVE, SUSPECTED INTER COMPRESSOR CASE SEAL UNSERVICEABLE OR .7500 MAIN BEARING LEAK.