What was found
CLIMBING THRU 16,000 FT NOTICED SYS A HYD QTY WAS ZERO, SHORTLY AFTER SYS PRESSURE WENT TO ZERO & BOTH LOW PRESSURE LIGHTS CAME ON. PERFORMED STABILIZER & QRH SYS A LEAK OR LOSS CHECKLIST, PERFORMED MANUAL GEAR EXTENTION & ALT MASTER FLAP EXTENTION. LANDED 16R AFW. TROUBLESHOT & FOUND PRESSURE HOSE FOR LOWER RUDDER PACK HAD A HOLE FROM CHAFING ON BRACKET JUST ABOVE LWR RUDDER PACK, R & R BOTH PRESSURE & RETURN HYD LINES FOR LWR RUDDER PACK, R & R NR 1 ENG SYSTEM A ENGINE DRIVEN HYD PUMP PER M/M 29-11-033-4 R & R NR 1 ENG SYS A HYD PUMP CASE DRAIN FILTER PER MM 29-11-041-2 R & R ENG SYS A ENG DRIVEN HYDPUMP PER MM 29-11-033-4, R & R NR 2 ENG SYSTEM A HYD PUMP CASE DRAIN FILTER PER MM 29- 11-041-2 & R & R SYSTEM A HYD RETURN FILTER PER M/M 29-11-102-2 LEAK & OPS CHECK PER MM 29-11-033-4 NO LEAKS NOTED RAN ENG PER J.R.H OPS CHECK NORMAL NR 1 & 2 ENG HYD PUMPS 3000 PSI NO LEAKS. LEAKED CHECK LOWER RUDDER HYD PRESSURE & RETURN LINES NO LEAKS A/C OK TO CONTINUE SERVICE. LEAK CHECKED NR 1 & 2 ENG CASE DRAIN FILTER HOUSING NO LEAKS.