What was found
NON ETOPS FLT 208 LIH-HNL. DURING CLIMB OUT OF LIH, CREW NOTED HYDRAULIC QUANTITY DROP TO ZERO. CREW COMPLETED CHECKLIST PROCEDURES AND LANDED HNL WITHOUT FURTHER INCIDENT. AIRCRAFT WAS TOWED TO MAINTENANCE. MAINTENANCE FOUND A PACKING ON THE NR 4 SPOILER ACTUATOR DAMAGED. MAINTENANCE REPLACED THE DAMAGED PACKING AND REPLACED BOTH NR 1 AND NR 2 ENGINE DRIVEN HYDRAULIC PUMPS AND CASE DRAIN FILTERS AS A PRECAUTION. THE SYSTEM WAS LEAK AND OPERATIONALLY CHECKED AND THE AIRCRAFT WAS RETURNED TO SERVICE.