Narrative:

As throttles were advanced for takeoff, the takeoff warning horn sounded. Throttles were retracted to idle and aircraft cleared the runway. All configns were checked and found to be in the proper position. Aural warning horn circuit breaker was recycled and takeoff warning horn was silenced.

Google
 

Original NASA ASRS Text

Title: TKOF ABORTED WHEN TKOF WARNING HORN SOUNDS.

Narrative: AS THROTTLES WERE ADVANCED FOR TKOF, THE TKOF WARNING HORN SOUNDED. THROTTLES WERE RETRACTED TO IDLE AND ACFT CLRED THE RWY. ALL CONFIGNS WERE CHKED AND FOUND TO BE IN THE PROPER POS. AURAL WARNING HORN CIRCUIT BREAKER WAS RECYCLED AND TKOF WARNING HORN WAS SILENCED.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.