What was found
THE NR 1 ENGINE HYDRAULIC LOW PRESSURE LIGHT ILLUMINATED AND HYDRAULIC QUANTITY DROPPED TO ZERO ON APPROACH TO EWR. ALL ABNORMAL AND EMERGENCY CHECKLISTS WERE ACCOMPLISHED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LT MLG HYDRAULIC TRANSFER CYLINDER LEAKING. THE TRANSFER CYLINDER WAS REMOVED AND REPLACED IAW MM 32-32-71. THE HYDRAULIC SYSTEM WAS SERVICED AND LEAK CHECK WAS GOOD.