What was found
THE NR 2 HYDRAULIC SYSTEM QUANTITY WAS LOST WHILE EN ROUTE FROM IAH TO LGW. THE AIRCRAFT LANDED AT LGW WITHOUT INCIDENT. MAINTENANCE FOUND HYDRAULIC LINE FROM 2-3 REVERSIBLE MOTOR PUMP PUNCTURED AND THE FORWARD SHUTOFF VALVE OF 2-3 REVERSIBLE MOTOR PUMP WAS INOPERATIVE. THE SHUTOFF VALVE WAS REMOVED AND REPLACED. THE HYDRAULIC LINE WAS REPLACED USING FLEX HOSE AND A DIP WAS ISSUED TO REPLACE THE HOSE WITHIN 500 FLIGHTS OR 1200 FLIGHT HOURS. IN ADDITION, BOTH THE LT AND RT HYDRAULIC PUMPS WERE REMOVED AND REPLACED.