What was found
DURING CLIMBOUT FROM AVB, THE FLIGHT CREW NOTICED A DECLINE IN THE MAIN HYDRAULIC QUANTITY AND PRESSURE INDICATION SYSTEMS. THE FLIGHT CREW FOLLOWED COMPANY PROCEDURES AND RETURNED TO AVB FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE AIRCRAFT LOCATING A DEFECTIVE HYDRAULIC PRESSURE LINE ON THE NUMBER THREE ENGINE HYDRAULIC PUMP. MAINTENANCE REPLACED THE LINE AND PERFORMED A SUCCESSFUL OPERATIONAL CHECK IN ACCORDANCE WITH THE MAINTENANCE MANUAL. THE AIRCRAFT WAS RETURNED TO SERVICE.