As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE TRYING TO CLOSE THE MAIN CABIN DOOR THE LEVER SEEMS TO BE BINDING UP. MORE THAN NORMAL FORCE IS REQUIRED TO PULL THE LEVER DOWN TO LOCK THE MAIN DOOR. CORRECTIVE ACTION FOUND FWD MIDDLE ECCENTRIC STRIKER LOOSE. ADJUSTED FWD AND AFT MIDDLE ECCENTRIC STRIKER REF MM 52-10-00. MCD OPERATES NORMALLY.