What was found
PDIS 621 79-01 3323 13SEP19 MEM OPEN U LOGPAGES: 3144515 2 HOURS INTO FLIGHT #3 ENG OIL QTY WENT RAPIDLY TO 4-THEN DECREASED TO 1-OIL PRESS AND TEMP OK. PER MOCC REQUEST WE WENT TO IDLE ON #3 ENG FOR 2 MIN-NO CHANGE-AT 2 HOURS AND 30 MIN-OIL PRESS STARTED TO DECREASE DOWN TO 100 PSI-SHUTDOWN ENG W/ QRH. FACT 15SEP19 21:11 MEM REPLACED #3 ENGINE PER WORK CARDS 71T0903-PW, 7110000-00-99, 71T0101-PW, 54T0203, 7100000-00-99, 29T0303 AND 7110001-00-91.