What was found
FLT 6470 - DCA-LGA - EN ROUTE LOST ALL SYSTEM 'A' HYDRAULIC FLUID. EMERGENCY DECLARED. MANUAL LANDING GEAR EXTENSION PERFORMED. FOUND SYSTEM 'A' AILERON MODULAR PACKAGE SEPARATED. REPLACED AILERON PACKAGE PER MM 27-10-141. REPLACED NR 1 AND NR 2 ENGINE HYDRAULIC PUMPS. REPLACED CASE DRAIN, PRESSURE AND RETURN FILTERS. REPLACED SYSTEM 'A' RESERVOIR AIR PRESSURE REGULATOR. SERVICED HYDRAULIC SYSTEM. (M)