As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL WITH THE ACFT BELOW 60 KNOTS THE TAKEOFF WARNING HORN SOUNDED. TAKEOFF WAS ABORTED WITHOUT INCIDENT AND RETURNED TO THE BLOCKS. POST FLIGHT INSP WAS PERFORMED, STABILIZER TAKEOFF WARNING SWITCH S533 WAS AT FAULT. R & R THE STABILIZER TAKEOFF WARNING SWITCH S533. PERFORMED OPS CHECKS, NO DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.