What was found
ON APPROACH, GEAR EXTENDED NORMAL THEN FLAPS SELECTED TO 30, A-SYTEM QUANTITY REDUCED TO 0. SYSTEM PUMPS WERE TURNED OFF. FOUND A-SYSTEM RETURN FILTER MOUNT CLAMP BROKEN. REPLACED RETURN FILTER ASSEMBLY PER MM 29-11-102 AND REPLACED ENGINE A-PUMP, EDP CASE DRAIN FILTER, PRESSURE FILTER AND FLUSHED A-SYSTEM PER MM 29-11-33, MM 29-11-41, MM 29-11-41 AND 29-11-0.