What was found
IAH - FLIGHT 2586, DURING CLIMB THE CREW REPORTED THE NUMBER ONE COMM HOT MIC WAS TRANSMITTING CONTINUOUSLY. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE CAPTAINS BOOM MIC JACK, HAND MIC JACK, RECONNECTED THE F/O'S HAND MIC JACK, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.