What was found
NOTED ELEVATOR LOW PRESSURE LIGHT CAME ON, HYDRAULIC SYSTEM (A) QUANTITY INDICATED ZERO, SYSTEM (A) ENGINE PUMP LOW PRESSURE LIGHTS BLINKING. FLIGHT DIVERTED MAINTENANCE BASE WHERE A LANDING WAS MADE WITHOUT INCIDENT. FOUND BROKEN INSERT IB TRUNNION FITTING ON NR 5 KRUGER FLAP ACTUATOR. REMOVED AND REPLACED NR 5 KRUGER FLAP ACTUATOR. INSPECTED NR 1 AND NR 2 ENGINE HYDRAULIC PUMP CASE DRAIN AND (A) SYSTEM PRESSURE FILTERS. NO EVIDENCE OF PUMP FAILURE. FILTERS AND LEAK CHECKS GOOD. AC WAS RETURNED TO SERVICE.