DC-10 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Rejected Takeoff; General Maintenance Action
Aircraft
At 108 knots [on the takeoff roll] the auto ground spoilers deployed uncommanded.  We rejected the takeoff and complied with  all checklists.
The reporter states that the first indication of trouble was the spoiler handle moving aft and the RTO had already been commenced when the takeoff warning begin to sound. The auto ground spoiler system was deactivated and placed on MEL by Maintenance so the flight could operate as scheduled. The actual cause of the anomaly was a throttle switch pack located in the pedestal that would normally detect reverser activation during takeoff and deploy the ground spoilers.
DC10 Captain experiences ground spoiler deployment at 108 knots during takeoff and rejects.