As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AUTO-THROTTLE WOULD NOT ENGAGE DURING THE TAKEOFF ROLL. PERFORMED A LOW SPEED REJECTED TAKEOFF (<30 KNOTS). CLEARED RUNWAY TO TROUBLE SHOOT. FOLLOWED GUIDANCE IN THE MECHANICAL DISCREPANCY FLOW CHART. PERFORMED A FLIGHT CREW DEFERRAL IAW MEL 22-30-1-1 IN CONFERENCE WITH FLIGHT CONTROL AND MAINTENANCE CONTROL. REST OF FLIGHT WAS UNEVENTFUL (NO AUTO-THROTTLE).