As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DOOR: THE MAIN CABIN DOOR IS BINDING BADLY AND IS VERY DIFFICULT TO OPEN WITHOUT USING FORCE INSIDE OR OUTSIDE. (FOUND DURING PRE-FLIGHT) "CORRECTIVE ACTION" FOUND CABIN DOOR HANDRAIL SUPPORT STRUT TO BE BINDING LUBRICATED SUPPORT STRUT IAW CE680A 52-10-40 OPS CHECKS GOOD.