As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OAK - ABORTED TAKEOFF - 4/21/01 - AS POWER WAS APPLIED FOR TAKEOFF, THE CONFIGURATION WARNING HORN SOUNDED AND THE TAKEOFF WAS ABORTED; THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE TROUBLESHOT AND FOUND THE SPEED BRAKE TAKEOFF WARNING SWITCH (S651) BROKEN. THE SWITCH WAS REPLACED AND FUNCTIONALLY CHECKED GOOD.