What was found
FLT 8001 - DURING CRUISE 'A' SYSTEM HYDRAULIC QUANTITY DECREASED TO ZERO, FOLLOWED BY NR 1 'A' SYSTEM PUMP LOW PRESSURE LIGHT. FLIGHT CREW FOLLOWED AOM PROCEDURE. AIRCRAFT LANDED AT MMUN WITHOUT INCIDENT. MAINTENANCE FOUND 'A' SYSTEM RESERVOIR WITH 1 GALLON FLUID REMAINING, CASE DRAIN FILTERS REVEALED NO DEBRIS. THE NR 3 KRUEGER FLAP ACTUATOR WAS REMOVED AND REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)