As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE, THE EMERGENCY DOOR WARNING LIGHT WAS DISPLAYED. THE CREW FOLLOWED THE QUICK REFERENCE HANDBOOK AND DIVERTED TO RIC. THE AIRCRAFT WAS THEN FERRIED TO PIT. MAINTENANCE INSPECTED AND ADJUSTED THE PROXI SENSOR AND THE DOOR LOCK SWITCH IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 52-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.