As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DOOR: HANDLE WILL NOT ENGAGE/OPERATE LATCHING PINS. DOOR WILL NOT LATCH. RESOLUTION: FOUND MED CLOSED ON INITIAL WALK AROUND. VERIFIED THAT LATCH PINS ACTUATE WITH DOOR HANDLE MOVEMENT. PERFORMED OPERATION CHECK OF MED. OPERATION CHECK GOOD. WORK PERFORMED IAW CESSNA 680A AMM52-10-00.