Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Returned To Gate; Flight Crew Rejected Takeoff; General Maintenance Action
Aircraft
The illumination of an amber warning light indicating a fault in the auto speedbrake system. Low speed rejected takeoff at approximately 55 KTS [when] I observed the amber 'speed brake do not arm' warning light illuminate. A low speed abort was initiated at approximately 60 KTS. The First Officer confirmed the warning light illumination. Passengers and crew were notified; relevant QRH checklist was completed; Dispatch and Maintenance were contacted. The 'auto speed brake' and 'speed brake load alleviation' systems were assigned MEL's. We then continued the flight.
B737-700 Captain reports an amber 'speed brake do not arm' warning light at 55 KTS and rejects the takeoff. Maintenance MEL's the 'auto speed brake' and 'speed brake load alleviation' systems and the flight departs.