As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3190 THE CREW REPORTED THE MAIN CABIN DOOR WOULD NOT OPEN FROM THE INSIDE. THE AIRCRAFT WAS REMOVED FROM SERVICE. FOUND HANDLE LOOSE. RE-SECURED MAIN CABIN DOOR ACTUATING HANDLE IAW EMB 140 AMM 52-18-05. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.