As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3534 THE CREW REPORTED THE MAIN DOOR WAS HARD TO OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. INSPECTED CLEANED AND LUBRICATED DOOR SEAL NO DAMAGE NOTED AT THIS TIME OPERATIONAL CHECK NORMAL IAW AMM 52-10-00. THE AIRCRAFT WAS RETURNED TO SERVICE.