As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE CREW RECEIVED A TAKEOFF CONFIGURATION WARNING INDICATION AND RETURNED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE NR 1 IAC IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 31-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.