As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF, UPON ADVANCING THROTTLES FOR TAKEOFF WARNING HORN SOUNDED. (FLAPS AND SPEEDBRAKED CORRECTLY SET). INSPECTED AND OPERATED TAKEOFF WARNING SYSTEM. NO DEFECTS NOTED LATER ON PERFORMED TAKEOFF WARNING TEST PER MM. NO DEFECTS NOTED.