What was found
APPROXIMATELY 20 MIN INTO FLIGHT, NR 2 HYD QUANTITY AND PRESSURE WENT TO ZERO. ENGINE RAN APPROXIMATELY 55 MINUTES BEFORE SHUTING DOWN. T/S FOUND NR 2 ENG FIRE-RESISTANT HOSE ASSY BROKEN. REPLACED NEW HOSE ASSY AND REPLACED BOTH ENG DRIVE PUMP AND FILTERS CHECKED, NO CONTAMINATION. REPLACED FILTERS AND LEAK CHK BY ENG RAN NML PER M/M 29-11-02-2, 29-12-0 2-2 ENG RAN BY 136501, 252482.