As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4429 THE CREW REPORTED THE MAIN CABIN DOOR WAS HARD TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. LUBRICATED MAIN DOOR ROLLERS IAW EMB-135 AMM 20-30-02 STANDARD PRACTICES. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.