What was found
IAH - FLT 1934 - SHORTLY AFTER TAKEOFF, THE NR 2 ENGINE OVERHEAT LIGHT AND THE MASTER CAUTION LIGHT ILLUMINATED. CREW WENT THROUGH EMERGENCY PROCEDURES, DISCHARGED BOTH ENGINE FIRE BOTTLES AND SHUT DOWN THE NR 2 ENGINE. FLIGHT RETURNED TO FIELD AT IAH AND LANDED AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. AN EMERGENCY WAS DECLARED. TOTAL SINGLE ENGINE TIME WAS 17 MINUTES. MAINTENANCE REMOVED AND REPLACED THE NR 2 ENGINE CORE HARNESS AND THE TWO ENGINE FIRE BOTTLES. OPERATIONAL CHECK GOOD. (M)