As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAKEOFF CONFIG LIGHT ILLUMINATED, AND HORN SOUNDED DURING TAKEOFF ROLL. ALL TAKEOFF CONFIGURATIONS WERE IN THE PROPER POSITIONS AND WARNING DID NOT ACTIVATE DURING TAXI OPERATIONS PRIOR TO TAKEOFF. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: PERFORMED TAKEOFF WARNING SYSTEM TEST AND AURAL WARNING MODULE OPERATIONAL TEST IAW B737-AMM 31-26-00. OPS CHECKS TEST GOOD. NO DEFECTS NOTED AT THIS TIME NO PARTS NEEDED AT THIS TIME.