As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4340 THE CREW REPORTED THE MAIN PASSENGER DOOR WAS HARD TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. SERVICED MAIN PASSENGER DOOR ROLLERS AS PER EMB-140 AMM 53-21-02. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.