As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED AVIONICS BAY DOOR AMBER CAS MESSAGE ON TAKEOFF ROLL. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE INSPECTED AND DEFERRED AVIONICS BAY DOOR INDICATION INOPERATIVE PER MEL. AIRCRAFT RELEASED FOR SERVICE. R & R PSEU IAW AMM 32-61-01-400-801. OPS CHECK GOOD.