As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3226 THE FLIGHT ATTENDANT REPORTED THE 28,855 WAS HARD TO GET OPEN. THE AIRCRAFT WAS REMOVED FROM SERVICE. CLEANED AND LUBED THE MAIN CABIN DOOR GUIDES PER 52-11-00. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.