As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT WHEN DEBARKING THE AIRCRAFT THE UPPER MAIN CABIN DOOR SPRING LINKAGE FAILED CAUSING THE UPPER DOOR TO FALL ON THE CREW MEMBERS HEAD. THE MAINTENANCE TEAM TIGHTENED THE DOOR LINKAGE HARDWARE ON THE UPPER DOOR. OPERATIONS CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.