What was found
FLIGHT 7780 - BOS-IAD - IN CLIMB-OUT AROUND 14,000 FEET, RECEIVED E1 HYD PUMP FAIL INDICATION AND SYS 1 HYD LOW QTY INDICATION. NR 1 ENGINE HYDRAULIC PUMP CAME ON, SYSTEM PRESSURE WAS MAINTAINED AT 2900 PSI, ON HYDRAULIC PAGE INDICATION OF QUANTITY WAS AT BOTTOM OF YELLOW RANGE. SHUT OFF NR 1 ELECTRIC HYDRAULIC PUMP, DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. PRESSURE OF 2900 PSI WAS MAINTAINED DURING ROLLOUT. MAINTENANCE FOUND LEAK FROM HYDRAULIC LINE AND REMOVED AND REPLACED LINE.