As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLI - DURING ADDITION OF TAKEOFF POWER, THE TAKEOFF WARNING HORN ACTIVATED. TAKEOFF WAS ABORTED AND THE REJECTED TAKEOFF LIST WAS COMPLIED WITH. A SECOND TAKEOFF WAS ATTEMPTED AND AGAIN THE TAKEOFF WARNING SOUNDED. THE REJECTED TAKEOFF LIST WAS COMPLIED WITH AGAIN AND THE AIRCRAFT RETURNED TO THE GATE. AIRCRAFT WAS TROUBLESHOT, NO TAKEOFF WARNING HORN SOUNDED. COMPLIED WITH FUNCTIONAL TEST. COULD NOT DUPLICATE. NO DISCREPANCIES DETECTED. AIRCRAFT RETURNED TO SERVICE.