What was found
IAH - FLT 1949 - THE NR 1 ENGINE FIRE WARNING LIGHT AND BELL ACTIVATED WHILE ON DESCENT INTO IAH. THE NR 1 ENGINE WAS SHUT DOWN, BOTH FIRE BOTTLES WERE DISCHARGED, AND THE FIRE WARNING CEASED. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NO EVIDENCE OF FIRE. TROUBLESHOOTING FOUND THE NR 1 ENGINE UPPER BARRIER FIRE LOOP CONNECTOR AT FAULT. THE CONNECTOR WAS REMOVED AND REPLACED. THE FIRE DETECTION SYSTEM CHECKED GOOD. IN ADDITION, BOTH FIRE BOTTLES WERE REMOVED AND REPLACED. (X)