Takeoff aborted due to wrong flap setting.

Attributes
ACN	289775
Time
Date	199411
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Controlling Facilities	tower : lns
Operator	common carrier : air carrier
Make Model Name	B737-400
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground : preflight other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 20000 flight time type : 2000
ASRS Report	289775
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Chart Or Publication
Air Traffic Incident	Pilot Deviation

Narrative:

We aborted takeoff due to confign warning horn. We checked all items associated with the takeoff warning and could find no deviation. All checklists were read and complied with. The checklist reply for flaps is 'flaps xx degrees, green light, detent.' we were using flaps 1 degree for takeoff because our original weight and balance called for a flaps 1 degree takeoff. This led us down the golden path to forget that we were in a dash 400. The 737-400 minimum flaps for takeoff is 5 degrees, the dash 300 minimum flaps for takeoff is 1 degree. The checklist used is exactly the same for the 2 aircraft. Perhaps, to avoid recurrence of this situation, the checklist should be more specific as to aircraft version.

Original NASA ASRS Text

Title: TKOF ABORTED DUE TO WRONG FLAP SETTING.

Narrative: WE ABORTED TKOF DUE TO CONFIGN WARNING HORN. WE CHKED ALL ITEMS ASSOCIATED WITH THE TKOF WARNING AND COULD FIND NO DEV. ALL CHKLISTS WERE READ AND COMPLIED WITH. THE CHKLIST REPLY FOR FLAPS IS 'FLAPS XX DEGS, GREEN LIGHT, DETENT.' WE WERE USING FLAPS 1 DEG FOR TKOF BECAUSE OUR ORIGINAL WT AND BAL CALLED FOR A FLAPS 1 DEG TKOF. THIS LED US DOWN THE GOLDEN PATH TO FORGET THAT WE WERE IN A DASH 400. THE 737-400 MINIMUM FLAPS FOR TKOF IS 5 DEGS, THE DASH 300 MINIMUM FLAPS FOR TKOF IS 1 DEG. THE CHKLIST USED IS EXACTLY THE SAME FOR THE 2 ACFT. PERHAPS, TO AVOID RECURRENCE OF THIS SIT, THE CHKLIST SHOULD BE MORE SPECIFIC AS TO ACFT VERSION.

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.