Narrative:

At 80 KTS on our takeoff roll the master warning light and warning horn with the EICAS message of 'take off config' in red and underneath it 'flap drive' came on. The flap indicator on the EICAS was expanded and had the outboard trailing flaps in yellow and inboard in white. The six led were all green. I aborted the takeoff by 90 KTS and rejected takeoff engaged. I disengaged rejected takeoff by 70 KTS and had plenty of runway left even before we exited. We told tower we had aborted the take off and made a PA to the cabin to remain seated. We taxied back to the gate and left the flaps down where we had positioned them for take off (10 degrees).

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Original NASA ASRS Text

Title: A B747-400 flight crew rejected their takeoff at 90 KTS due to a takeoff configuration warning due to the flaps not reaching a takeoff setting despite the proper flap lever selection.

Narrative: At 80 KTS on our takeoff roll the master warning light and warning horn with the EICAS message of 'Take Off Config' in red and underneath it 'Flap Drive' came on. The flap indicator on the EICAS was expanded and had the outboard trailing flaps in yellow and inboard in white. the six LED were all green. I aborted the takeoff by 90 KTS and RTO engaged. I disengaged RTO by 70 KTS and had plenty of runway left even before we exited. We told Tower we had aborted the take off and made a PA to the cabin to remain seated. We taxied back to the gate and left the flaps down where we had positioned them for take off (10 degrees).

Data retrieved from NASA's ASRS site as of April 2012 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.