B737-800
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Rejected Takeoff; Flight Crew Returned To Gate
Aircraft
[On takeoff] experienced N1 compressor overspeed indications on both engines at 100 kias with TOGA power indicated on Flight mode annunciation and APU bleed ON. A rejected takeoff was executed and aircraft returned to gate for maintenance inspection. Cause not determined at this time.
B737-800 Captain reported a rejected takeoff due to an N1 compressor overspeed on both engines.