Narrative:

After completing my walkaround. We took the runway for takeoff. As power was applied, I looked out my window and saw my fuel cap move up. I called for the abort and we returned to the gate. I personally checked the fuel cap and found the fueler just left it sitting in the fuel port. It was flushed to the point you could not see it was not in properly. We then departed without incident. Note: most of our fuel caps on our fleet are painted red. This one on this day was white, the same color of the top of the wing. When this is the case it is difficult to see if they are in properly.

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Original NASA ASRS Text

Title: AN ACR BE02 FLC NOTICE THAT A FUEL CAP WAS LOOSE DURING TKOF. THEY REJECT THE TKOF AND RETURN TO THE GATE WHERE THE CAP WAS PROPERLY INSTALLED.

Narrative: AFTER COMPLETING MY WALKAROUND. WE TOOK THE RWY FOR TKOF. AS PWR WAS APPLIED, I LOOKED OUT MY WINDOW AND SAW MY FUEL CAP MOVE UP. I CALLED FOR THE ABORT AND WE RETURNED TO THE GATE. I PERSONALLY CHKED THE FUEL CAP AND FOUND THE FUELER JUST LEFT IT SITTING IN THE FUEL PORT. IT WAS FLUSHED TO THE POINT YOU COULD NOT SEE IT WAS NOT IN PROPERLY. WE THEN DEPARTED WITHOUT INCIDENT. NOTE: MOST OF OUR FUEL CAPS ON OUR FLEET ARE PAINTED RED. THIS ONE ON THIS DAY WAS WHITE, THE SAME COLOR OF THE TOP OF THE WING. WHEN THIS IS THE CASE IT IS DIFFICULT TO SEE IF THEY ARE IN PROPERLY.

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.