As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW ABORTED THE TAKEOFF DUE TO A GEN 2 OFF CAS MESSAGE. CREW RETURNED TO THE GATE WITHOUT INCIDENT. MAINTENANCE PERFORMED A REJECTED TAKEOFF INSPECTION AND DEFERRED THE NR 2 IDG PER MEL 24-11-01-3. MAINTENANCE REMOVED AND REPLACED THE NR 2 IDG. MEL WAS CLEARED. AIRCRAFT WAS RELEASED FOR SERVICE.