Widebody transport aborts takeoff when cockpit window is discovered not to be locked closed.

Attributes
ACN	230082
Time
Date	199301
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ida
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 5500 flight time type : 300
ASRS Report	230082
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 3500 flight time type : 700
ASRS Report	229985
Events
Anomaly	non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Takeoff initiated and at approximately 80 KTS an unusual loud wind noise was noted from copilot's window. Captain aborted at approximately 85-90 KTS. After turnoff from runway window was closed and locked. Apparently, maintenance workers closed the window but did not lock it, although it appeared fully closed. Handle on widebody transport can be forward enough to show 'closed' position on indicator with window still not locked. Although it appears twice on the checklist we are so used to getting on an airplane and checking appearances without touching or forcing switches that the item was checked, but not well enough. Contributing factor was that window appeared closed, and it was assumed 'closed and locked.' better vigilance to checklist and actually pushing forward on window handle would help prevent recurrence. Also, having mechanics redo items they undo, i.e. Checklist procedures would help.

Original NASA ASRS Text

Title: WDB ABORTS TKOF WHEN COCKPIT WINDOW IS DISCOVERED NOT TO BE LOCKED CLOSED.

Narrative: TKOF INITIATED AND AT APPROX 80 KTS AN UNUSUAL LOUD WIND NOISE WAS NOTED FROM COPLT'S WINDOW. CAPT ABORTED AT APPROX 85-90 KTS. AFTER TURNOFF FROM RWY WINDOW WAS CLOSED AND LOCKED. APPARENTLY, MAINT WORKERS CLOSED THE WINDOW BUT DID NOT LOCK IT, ALTHOUGH IT APPEARED FULLY CLOSED. HANDLE ON WDB CAN BE FORWARD ENOUGH TO SHOW 'CLOSED' POS ON INDICATOR WITH WINDOW STILL NOT LOCKED. ALTHOUGH IT APPEARS TWICE ON THE CHKLIST WE ARE SO USED TO GETTING ON AN AIRPLANE AND CHKING APPEARANCES WITHOUT TOUCHING OR FORCING SWITCHES THAT THE ITEM WAS CHKED, BUT NOT WELL ENOUGH. CONTRIBUTING FACTOR WAS THAT WINDOW APPEARED CLOSED, AND IT WAS ASSUMED 'CLOSED AND LOCKED.' BETTER VIGILANCE TO CHKLIST AND ACTUALLY PUSHING FORWARD ON WINDOW HANDLE WOULD HELP PREVENT RECURRENCE. ALSO, HAVING MECHS REDO ITEMS THEY UNDO, I.E. CHKLIST PROCS WOULD HELP.

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.