<< >> NASA ASRS Report 620126, June 2004

Due to distrs and fatigue, flight crew of B737-900 forget to set flaps to takeoff setting. Reject takeoff at low speed when confign warning sounds.

Attributes
ACN	620126
Time
Date	200406
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : san.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	620126
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 15000 flight time type : 8000
ASRS Report	620123
Events
Anomaly	inflight encounter other non adherence : published procedure non adherence : company policies
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : overcame equipment problem flight crew : rejected takeoff
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor Company Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

On takeoff roll we received an aural takeoff confign warning horn at a very low speed, the captain called 'abort I have it.' we told tower and taxied off the runway. Assessing the situation the flaps had not been positioned correctly. We corrected the problem. We then made an uneventful takeoff. No other corrective actions required. Supplemental information from acn 620123: at the very moment I would have called for flaps 5 degrees, operations called with an amendment to our takeoff weight. The first officer immediately replied to operations and was busy copying the revision onto the dispatch release while I cleared left and right and began a very slow taxi out. I neglected to make the flaps 5 degree call because of the obvious interruption to the first officer. I feel 2 things would have prevented this occurrence. The first is for all amendments to dispatch releases to be transmitted via ACARS. ACARS can be answered at our leisure and does not interrupt flows and checklists as much as a call from operations. The second is to not let complacency creep into the mix no matter how tired you are.

Related reports:

• Beset by fatigue; distrs and lack of experience; probationar...

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Original NASA ASRS Text

Title: DUE TO DISTRS AND FATIGUE, FLT CREW OF B737-900 FORGET TO SET FLAPS TO TKOF SETTING. REJECT TKOF AT LOW SPD WHEN CONFIGN WARNING SOUNDS.

Narrative: ON TKOF ROLL WE RECEIVED AN AURAL TKOF CONFIGN WARNING HORN AT A VERY LOW SPD, THE CAPT CALLED 'ABORT I HAVE IT.' WE TOLD TWR AND TAXIED OFF THE RWY. ASSESSING THE SIT THE FLAPS HAD NOT BEEN POSITIONED CORRECTLY. WE CORRECTED THE PROB. WE THEN MADE AN UNEVENTFUL TKOF. NO OTHER CORRECTIVE ACTIONS REQUIRED. SUPPLEMENTAL INFO FROM ACN 620123: AT THE VERY MOMENT I WOULD HAVE CALLED FOR FLAPS 5 DEGS, OPS CALLED WITH AN AMENDMENT TO OUR TKOF WT. THE FO IMMEDIATELY REPLIED TO OPS AND WAS BUSY COPYING THE REVISION ONTO THE DISPATCH RELEASE WHILE I CLRED L AND R AND BEGAN A VERY SLOW TAXI OUT. I NEGLECTED TO MAKE THE FLAPS 5 DEG CALL BECAUSE OF THE OBVIOUS INTERRUPTION TO THE FO. I FEEL 2 THINGS WOULD HAVE PREVENTED THIS OCCURRENCE. THE FIRST IS FOR ALL AMENDMENTS TO DISPATCH RELEASES TO BE XMITTED VIA ACARS. ACARS CAN BE ANSWERED AT OUR LEISURE AND DOES NOT INTERRUPT FLOWS AND CHKLISTS AS MUCH AS A CALL FROM OPS. THE SECOND IS TO NOT LET COMPLACENCY CREEP INTO THE MIX NO MATTER HOW TIRED YOU ARE.

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.