As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3335 THE CREW REPORTED THE MAIN CABIN DOOR WAS DIFFICULT TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. INSPECTED AND LUBED IAW EMB AMM 52-11-00 AND THE OPERATIONAL CHECKS WERE GOOD AT THIS TIME. THE AIRCRAFT WAS RETURNED TO SERVICE.