As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSP FLIGHT 4089 THE CREW REPORTED THE MAIN CABIN DOOR WOULD NOT OPEN FROM THE INSIDE. MAINTENANCE INSPECTED AND FOUND THE BOLT AND NUT ON THE INTERNAL HANDLE ASSEMBLY TO BE WORN. THE HARDWARE WAS REPLACED AND OPERATIONAL CHECKS OF THE DOOR WERE GOOD. THE AIRCRAFT WAS RELEASED FOR SERVICE. BOLT P/N IS AN3-13A.