As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 3989 CONTRACT MAINTENANCE HAD A DIFFICULT TIME OPENING TO CABIN DOOR. THE AIRCRAFT WAS REMOVED FROM SERVICE. OPEN AND CLOSED THE MAIN DOOR IAW EMB AMM 52-18-00 NO DEFECTS NOTED. NO PARTS REMOVED OR REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.