As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE MAIN CABIN DOOR WAS UNABLE TO BE OPENED FROM THE INSIDE. THE DOOR WAS OPENED FROM THE OUTSIDE AND THE ACFT WAS FERRIED TO A MAINTENANCE BASE WHERE THE INTERNAL HANDLE CONNECTION CABLE WAS FOUND TO HAVE A CREASE IN THE CABLE AT THE BELL CRANK. MAINTENANCE REPLACED THE INTERNAL HANDLE CONNECTION CABLE AND NO FURTHER DEFECTS HAVE BEEN NOTED.