What was found
FLT NR 0005 - IAH - THE HYDRAULIC SYSTEM 3 ELEVATOR OFF LIGHT ILLUMINATED AND THE NR 3 HYDRAULIC QUANTITY AND PRESSURE DECREASED TO ZERO IN FLIGHT. THE EMERGENCY CHECKLIST WAS COMPLIED WITH AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 3 ENGINE RIGHT HYDRAULIC PUMP CASE CRACKED. BOTH NR 3 ENGINE RIGHT AND LEFT HYDRAULIC PUMPS WERE REPLACED. THE HYDRAULIC SYSTEM WAS SERVICED. THE HYDRAULIC CONTROLS WERE OPERATED WHILE ENGINE WAS RUNNING WITH NO LEAKS OR OTHER DISCREPANCIES NOTED. (M)