As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DOOR: AFTER T/O THE CABIN DOOR OPEN AMBER CAS AND CHECK DOORS AMBER CAS MESSAGE CAME ON. CHECK LIST WAS RUN AND DOOR VERIFIED CLOSED. ELECTED TO RETURN TO DEPARTURE AIRPORT. ADJUSTED DOOR HANDLE PROX SWITCH. OPS CHECK GOOD. IAW CE-700 AMM 52-10-05