As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW WAS UNABLE TO OPEN THE CABIN DOOR FROM INSIDE. LINE CREW HAD TO USE EXTERNAL HANDLE TO OPEN CABIN DOOR. THE PROBLEM WAS THE INNER DOOR RELEASE LOWER TRIGGER, HAD BROKEN OFF AT THE TOP INNER CORNER AND FALLEN BEHIND THE TRIGGER. CAUSING IT TO JAM AND NOT RELEASE THE DOOR HANDLE.