As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON T/O ROLL, APR ARMED, THE A/P INOP AND YAW DAMPER FAIL CAS CAME ON. ABORTED TAKEOFF. CREW PERFORMED PROCEDURES IN QRH AND A/P TEST, ALL APPEARED NORMAL. SECOND T/O SAME. CHECKED CABLE TENSIONS ON YAW, PITCH AND ROLL SERVO'S. FOUND ROLL SERVO TO BE OUT OF LIMITS. YAW AND PITCH CHECKED WITHIN LIMITS. RIGGED ROLL SERVO CABLE IAW EA500 MM 27-00-01. PERFORMED AUTO FLIGHT SYSTEM ADJUSTMENT TEST IAW EA500 MM 22-00-00. SYSTEM OP'S CHECK GOOD.