An air carrier medium large transport crew aborted 2 takeoffs because they had the wrong flap settin...

Attributes
ACN	235962
Time
Date	199303
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : las
State Reference	NV
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 8000 flight time type : 2250
ASRS Report	235962
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 160 flight time total : 14000 flight time type : 10000
ASRS Report	236292
Events
Anomaly	non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During takeoff roll, the takeoff warning horn sounded. The takeoff was aborted and we proceeded to the runup pad to runup the engines to determine why the horn went off. We ran the engines up but the horn did ot sound. We tried a takeoff again, but again, the warning horn sounded and the takeoff was aborted. When we exited the runway, we determined the flaps were set at 1 degree instead of 5 degrees. The aircraft was an medium large transport- a and the automated weight and balance stated 5 degrees was needed. I rapidly checked the takeoff speeds without reference to flap setting because 2 days earlier we were in a an medium large transport-B and used flaps 1 degree for takeoff. I was thinking medium large transport-B instead of medium large transport-a. Complacency and the time of day (i.e., dark cockpit, flying a re-eye) combined to present a somewhat hazardous situation. I should take my time and make sure things are right, not be in a hurry, and double check everything.

Original NASA ASRS Text

Title: AN ACR MLG CREW ABORTED 2 TKOFS BECAUSE THEY HAD THE WRONG FLAP SETTING.

Narrative: DURING TKOF ROLL, THE TKOF WARNING HORN SOUNDED. THE TKOF WAS ABORTED AND WE PROCEEDED TO THE RUNUP PAD TO RUNUP THE ENGS TO DETERMINE WHY THE HORN WENT OFF. WE RAN THE ENGS UP BUT THE HORN DID OT SOUND. WE TRIED A TKOF AGAIN, BUT AGAIN, THE WARNING HORN SOUNDED AND THE TKOF WAS ABORTED. WHEN WE EXITED THE RWY, WE DETERMINED THE FLAPS WERE SET AT 1 DEG INSTEAD OF 5 DEGS. THE ACFT WAS AN MLG- A AND THE AUTOMATED WT AND BAL STATED 5 DEGS WAS NEEDED. I RAPIDLY CHKED THE TKOF SPDS WITHOUT REF TO FLAP SETTING BECAUSE 2 DAYS EARLIER WE WERE IN A AN MLG-B AND USED FLAPS 1 DEG FOR TKOF. I WAS THINKING MLG-B INSTEAD OF MLG-A. COMPLACENCY AND THE TIME OF DAY (I.E., DARK COCKPIT, FLYING A RE-EYE) COMBINED TO PRESENT A SOMEWHAT HAZARDOUS SIT. I SHOULD TAKE MY TIME AND MAKE SURE THINGS ARE RIGHT, NOT BE IN A HURRY, AND DOUBLE CHK EVERYTHING.

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.

An air carrier medium large transport crew aborted 2 takeoffs because they had the wrong flap setting.