As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAKEOFF WARNING HORN SOUNDED WITH ALL THROTTLES AT N-1 APPROX 104.9 JUST PRIOR TO 80 KNOTS. (RTO). TAKEOFF AURAL WARN TEST CARRIED OUT AS PER MM 31-26-00, NO FAULTS FOUND. AURAL WARN UNIT ELECT CONNECTION INSPECTED AND CHECKED OK. FLAPS, SPEED BRAKE AND STAB TRIM SYSTEM ALL EXERCISED.