As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED T/O, AT 50-60 KTS GOT A AMBER CAS MSG "CABIN DOOR AND VENT DOOR " OPEN. WENT OUT AS WE SLOWED BELOW 50 KTS. GAINED ACCESS TO MED BY REMOVEING STEPS FOUND VENT DOOR PROX SWITCH OUT OF RIG. RE-RIGGED CABIN VENT DOOR PROX SWITCH. OP'S CHECK GOOD. VERIFIED PROPER SEQUENCE. WORK IN REF MM 52-10-07.