Flight crew of an medium large transport air carrier aircraft inadvertently made the wrong setting for takeoff flaps resulting in a resetting made to silence the takeoff warning sound on the takeoff roll.

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Attributes
ACN	267170
Time
Date	199403
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 6000 flight time type : 2000
ASRS Report	267170
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

This was the third takeoff of the day in this type of aircraft. Previous aircraft was certified and legal for takeoff with flaps in position 1. Aircraft in this instance was not certified to use flap 1 for takeoff, only 5 and 15. Takeoff was planned with flaps 5 but were set at position 1 at time of takeoff. Takeoff warn horn sounded during initial power application, flaps were then extended to position 5 and takeoff roll continued.

Original NASA ASRS Text

Title: FLC OF AN MLG ACR ACFT INADVERTENTLY MADE THE WRONG SETTING FOR TKOF FLAPS RESULTING IN A RESETTING MADE TO SILENCE THE TKOF WARNING SOUND ON THE TKOF ROLL.

Narrative: THIS WAS THE THIRD TKOF OF THE DAY IN THIS TYPE OF ACFT. PREVIOUS ACFT WAS CERTIFIED AND LEGAL FOR TKOF WITH FLAPS IN POS 1. ACFT IN THIS INSTANCE WAS NOT CERTIFIED TO USE FLAP 1 FOR TKOF, ONLY 5 AND 15. TKOF WAS PLANNED WITH FLAPS 5 BUT WERE SET AT POS 1 AT TIME OF TKOF. TKOF WARN HORN SOUNDED DURING INITIAL PWR APPLICATION, FLAPS WERE THEN EXTENDED TO POS 5 AND TKOF ROLL CONTINUED.

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.