What was found
HYDRAULIC SYSTEM FAILURE. NO OTHER INDICATIONS NOTED. COCKPIT RECIEVED NO MASTER CAUTION CHIME WHEN MESSAGES CAME UP ON EICAS. FOUND HOSE ASSY. TO NR 1 ENGINE DRIVEN HYDRAULIC PUMP LEAKING. RR'D HOSE ASSY. R & R NR 1 ENGINE DRIVEN HYDRAULIC PUMP. PERFORMED INSPECTION OF THE HYD.FLUID FILTERS. NO CONTAMINATION NOTED. SERVICED AND BLED NR 1 HYD. SYSTEM. PERFORMED ENGINE RUN AT MAX POWER FOR THREE MINUTES. NR 1 HYD SYS. OPERATES NORMALLY.