B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Total 535.00; Flight Crew Type 535.00
Aircraft Equipment Problem Less Severe
Air Traffic Control Provided Assistance; Flight Crew Rejected Takeoff
Aircraft
On takeoff roll at about 125 kias and 150;000 lbs; we had an aircraft configuration master caution. We aborted the takeoff; ran the checklists; and went back to the gate.
B737 First Officer reported high speed rejected takeoff due to aircraft configuration warning on takeoff roll.