As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3312 THE CREW REPORTED THE MAIN CABIN DOOR WAS VERY DIFFICULT TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE ROLLER "UPPER" IAW EMB 145 AMM 53-21-02. PERFORMED OPS CHECK IAW EMB 145 AMM 52-10-01. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.