As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT WAS ON TAKEOFF AND APPROACHING V1 AND THE "NO TAKE OFF" WARNING ANNUNCIATED, PILOT ABORTED TAKEOFF. DETERMINED A SWITCH WITHIN THE RT WING SPEED BRAKE CAUSED THE ISSUE. BAD SWITCH AND CORROSION WITHIN THE CONNECTOR WERE REPAIRED. ACFT RETURNED TO SERVICE.