As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED MAIN PASSENGER DOOR CAUTION DECENDING THROUGH FL11000 ON APPROACH. F/A REPORTED ON TOUCHDOWN MCD COMPLETELY UNLATCHED AND REQUIRED HIM TO HOLD TO PREVENT OPENING. ACFT FERRIED TO FOR REPAIR WITH OUTER HANDLE TAPED DOWN. ENGINEERS FOUND INNER-HANDLE RETENTION MECHANISM JAMMED IN THE COMPRESSED POSITION. THEY DISSASEMBLED,CLEANED,LUBED AND REASSEMBLED THE MECHANISM.