As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE DOOR PIN PORTION OF THE HINGE, WHICH IS RESPONSIBLE RETAINING THE DOOR, BROKE IN FLIGHT AND THE DOOR WAS UNSECURED AT THE LOWER CONNECTING POINT. THE FLIGHT CREW LANDED, THE DOOR WAS SECURED TEMPORARILY AND THE AIRCRAFT RETURNED TO THE MAINTENANCE FACILITY. (K)