What was found
ON FLIGHT 2919 DURING THE CLIMB THE CREW REPORTED, RECEIVED A PACK 1 VALVE CLOSED MESSAGE ON EICAS. THE CREW RESET PER AIRCRAFT OPERATIONS MANUAL VOLUME 1 WHICH CLEARED. 5-10 MINUTES LATER THE CREW DETECTED A SMOKE ODOR FOLLOWED BY PACK 1 VALVE CLOSED MESSAGE. THE CREW ELECTED TO RETURN TO DFW AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED A BLOWN OUT HOSE ON THE NR 1 PACK BETWEEN THE DUAL TEMPERATURE CONTROL VALVE AND THE PACK VALVE IAW EMB-140 AMM 21-51-01. THE OPERATIONAL CHECK WAS OK. THE AIRCRAFT WAS RETURNED TO SERVICE.