As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO BNA, THE CAPTAIN REPORTED THAT THE TEMPERATURE WAS RISING IN THE CABIN AND FLIGHT 4094 WAS DIVERTING TO PIT. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND TEMPERATURE CONTROL VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.