As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NON-ETOPS CARGO FLIGHT. TAKEOFF WARNING HORN SOUNDED AT THROTTLE UP FOR TAKEOFF. CREW ABORTED TAKEOFF AT 10 KTS. CREW FOUND THE SPEED BRAKE LEVER WAS NOT COMPLETELY IN THE STOWED POSITION. CREW STOWED THE SPEED BRAKE LEVER AND CONTINUED THE FLIGHT WITHOUT FURTHER INCIDENT. NO MX ACTION WAS TAKEN.