What was found
98-0058 AFTER TAKEOFF WITH GEAR AND FLAPS UP, LEADING EDGE DEVICE INDICATIONS WERE NORMAL. SYSTEM 'A' LOST ALL QUANTITY. DURING HYDRAULIC LOSS CHECK LIST, LEADING EDGE DEVICE MALFUNCTION, LIGHT ON SLAT NR 8 WAS AMBER. AFTER AIRCRAFT TOW IN, FOUND NR 8 SLAT ACTUATOR BLOWN. REMOVED AND REPLACED PER MAINTENANCE MANUAL 27-81-32. REMOVED AND REPLACED SYSTEM FILTERS. TEST, BLED AND LEAK CHECK SYSTEM. NO LEAK, ALL FUNCTION NORMAL. RAN ENGINES 1 AND 2 PER JET RUN HANDBOOK AND TESTED PER CHAPTER 5A AND 9. GROUND CHECK NORMAL. SERVICED SYSTEM AS REQUIRED.