What was found
NR 3 ENGINE HYDRAULIC LEAK. TROUBLESHOT & FOUND PT LEAKING IN NR 3 ENG PYLON & LEAKING INTO DRAIN LINES, TO DRAIN MAST. REMOVED AND REPLACED PART. OPS CK'D GOOD, LEAK CK'D GOOD, PERFORMED ENG RUN, & HYD SYS OP'S OF FLIGHT CONTROLS. SVC'D HYD RES PER MM 12-00-00.