As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT INSPECTION, THE CREW REPORTED THAT THE MAIN CABIN ENTRY DOOR WAS DIFFICULT TO CLOSE. MAINTENANCE PERSONNEL LUBRICATED THE MAIN CABIN DOOR OPERATING MECHANISMS. AN OPERATIONAL CHECK WAS SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.