Narrative:

During takeoff roll prior to V1, the interphone call light and chime came on. Takeoff was aborted. The flight attendant had activated the call button because one of the passengers got up during the takeoff and came running up the aisle shouting 'the flaps aren't down!' after clearing the runway it was explained to this passenger that normal takeoffs are made with the flaps up. Another takeoff was made and the flight proceeded without incident! (The passenger claimed to be an large transport flight engineer).

Google
 

Original NASA ASRS Text

Title: PAX IN AISLE ON TKOF HAD CAB CALL COCKPIT TO ABORT TKOF, NO FLAPS DOWN FOR TKOF.

Narrative: DURING TKOF ROLL PRIOR TO V1, THE INTERPHONE CALL LIGHT AND CHIME CAME ON. TKOF WAS ABORTED. THE FLT ATTENDANT HAD ACTIVATED THE CALL BUTTON BECAUSE ONE OF THE PAXS GOT UP DURING THE TKOF AND CAME RUNNING UP THE AISLE SHOUTING 'THE FLAPS AREN'T DOWN!' AFTER CLRING THE RWY IT WAS EXPLAINED TO THIS PAX THAT NORMAL TKOFS ARE MADE WITH THE FLAPS UP. ANOTHER TKOF WAS MADE AND THE FLT PROCEEDED WITHOUT INCIDENT! (THE PAX CLAIMED TO BE AN LGT FLT ENGINEER).

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.