As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE, THE CREW RECEIVED A GALLEY DOOR OPEN MESSAGE. THE CREW REFERENCED THE QUICK REFERENCE HANDBOOK AND LANDED BACK AT PIT. MAINTENANCE INSPECTED AND FOUND THE TARGET A 1/4 LOOSE. THE AIRCRAFT WAS THEN FERRIED TO CAK. MAINTENANCE THEN ADJUSTED THE TARGET IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 52-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.