As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST SOUTH OF CVG, THE CREW RECEIVED A RED WARNING PANEL MAIN CABIN DOOR INDICATION. THE CREW REFERENCED THE QUICK REFERENCE HANDBOOK AND HEADED TOWARD CVG. WHILE DESCENDING THROUGH 16,000 FEET, THE INDICATION WENT OUT AND THE CREW WAS DIRECTED TO CONTINUE TO DAY. MAINTENANCE INSPECTED AND ADJUSTED THE DOOR STOPS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 52-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.