As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRIOR TO 80 KIAS WITH TAKEOFF POWER SET, DURING TAKEOFF, BOTH CONTROL DISPLAY UNIT SYSTEMS BLANKED AND ARM SWITCH DISENGAGED. CONTROL DISPLAY UNITS BOTH THEN REVERTED TO MENU PAGE. TAKEOFF REJECTED. THE AIRCRAFT WAS GROUNDED. MAINTENANCE TROUBLE SHOT AND FOUND FAULT MESSAGE 22-31071 FIM TASK 22-32-00-810-803 AND REPLACED RIGHT FLIGHT MANAGEMENT COMPUTER IAW MM 34-61-02 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.