As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: A/T CLICKED OFF DURING TAKE OFF ROLL. WAS ONLY ENGEAGED FOR 5 SECONDS OR LESS. TRIED BOTH FLIGHT F/D AND BOTH A/PS WITHOUT SUCCESS. REPLACED AUTO THROTTLE SERVO MOTOR 1 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 22-31-91.