As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLE DISENGAGED DURING TAKEOFF ROLL. WILL NOT RE-ENGAGE. ACFT GROUNDED . FFR LOGGED ASM2 RATE MONITOR. MESSAGE 22-31688. CYCLED ATS POWER. TORQUE, SERVO, & CURRENT STATUS BITE CHECKS ALL NORMAL IAW FIM 22-31, TASK 805 & 22-32, TASK 819.