As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN DOOR EXTREMELY DIFFICULT TO OPEN. VERIFIED DISCREPANCY. DOOR WAS MOVING IN A JERKING MANNER. PULLED AND RESET PCB NC101, AND CLEANED AND LUBED DOOR SEAL REFER TO CE-680A AMM 24-60-40 AND 52-10-04. OP CHECKS SUCCESSFUL. NO DEFECTS NOTED AT THIS TIME. AIRCRAFT RESTORED TO ORIGINAL CONFIGURATION.