What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 1 HYDRAULIC A PUMP LOW PRESSURE ILLUMINATE IN FLIGHT CRUISING AT FL380, HYDRAULIC AQUANTITY WAS AT 78% AND DECREASED TO 72% OVER 15 MINUTES. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT JAX. FOUND ENGINE 1 HYDRAULIC PRESSURE LINE CONNECTOR COMPLETELY BROKEN APART. REMOVE AND INSTALLED BOTH PRESSURE LINE (AALA202604230273) AND SUPPLY LINES (AALA202604231488), PER AMM 29-11-11. ALSO REMOVED AND INSTALLED ENGINE NUMBER 1 DRIVEN PUMP (AALA202604238252), PER AMM 29-11-11. OPS AND LEAK CHECK GOOD.