Narrative:

Normal taxi out, completed all checklists ready for takeoff, cleared in position and hold. Cleared for takeoff and pushed the throttles up and got a takeoff warning (flaps). Flaps were set 11 degrees takeoff with blue light. Aborted takeoff and cleared runway 9L. Cycled flaps and reselected 11 degrees takeoff. Did before takeoff checklist again and no takeoff warning was received. Taxied back for normal takeoff. (Rejected takeoff was before 60 KTS.)

Google
 

Original NASA ASRS Text

Title: TKOF ABORTED DUE TO TKOF WARNING HORN.

Narrative: NORMAL TAXI OUT, COMPLETED ALL CHKLISTS READY FOR TKOF, CLRED IN POS AND HOLD. CLRED FOR TKOF AND PUSHED THE THROTTLES UP AND GOT A TKOF WARNING (FLAPS). FLAPS WERE SET 11 DEGS TKOF WITH BLUE LIGHT. ABORTED TKOF AND CLRED RWY 9L. CYCLED FLAPS AND RESELECTED 11 DEGS TKOF. DID BEFORE TKOF CHKLIST AGAIN AND NO TKOF WARNING WAS RECEIVED. TAXIED BACK FOR NORMAL TKOF. (REJECTED TKOF WAS BEFORE 60 KTS.)

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.