Overweight landing following a cockpit window that was not properly closed.

Attributes
ACN	274920
Time
Date	199406
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lax
State Reference	CA
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	DC-10 10
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : takeoff ground : preflight other
Route In Use	arrival other departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 190 flight time total : 7000 flight time type : 2300
ASRS Report	274920
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 180 flight time total : 10000 flight time type : 1600
ASRS Report	274928
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft was brought into service from hangar. Taxi pilot closed captain's sliding window, flight engineer checked window on preflight, captain checked window on before start checklist. On takeoff roll, upper aft corner of window came open. Ground speed dictated continuing takeoff, climb and level off to assess problem. Noise level precluded proper communication. It was not possible to close the window, the trip could not be continued, so an over weight landing was made (410000 pounds and 62000 pounds over) smoothly touching down at 100 ft per second sink. Upon gate arrival, both sets of alignment marks were still aligned, the lock lever was still locked, but none of the rear dogs were in place. Aircraft was taken OTS for overweight landing inspection. Subsequent logbook entry indicated proper window operation with no malfunction. Fix consisted of opening and closing window. Callback conversation with reporter revealed the following information: the reporting first officer states that the captain tried to close the window while airborne with no success. The noise started early in the takeoff roll, but the crew chose to continue the takeoff as they were very heavy. The noise was very loud, both on the ground and in the air, making communications impossible for the captain who was using a c-clamp (company issue) type headset.

Original NASA ASRS Text

Title: OVERWT LNDG FOLLOWING A COCKPIT WINDOW THAT WAS NOT PROPERLY CLOSED.

Narrative: ACFT WAS BROUGHT INTO SVC FROM HANGAR. TAXI PLT CLOSED CAPT'S SLIDING WINDOW, FE CHKED WINDOW ON PREFLT, CAPT CHKED WINDOW ON BEFORE START CHKLIST. ON TKOF ROLL, UPPER AFT CORNER OF WINDOW CAME OPEN. GND SPD DICTATED CONTINUING TKOF, CLB AND LEVEL OFF TO ASSESS PROB. NOISE LEVEL PRECLUDED PROPER COM. IT WAS NOT POSSIBLE TO CLOSE THE WINDOW, THE TRIP COULD NOT BE CONTINUED, SO AN OVER WT LNDG WAS MADE (410000 LBS AND 62000 LBS OVER) SMOOTHLY TOUCHING DOWN AT 100 FT PER SECOND SINK. UPON GATE ARR, BOTH SETS OF ALIGNMENT MARKS WERE STILL ALIGNED, THE LOCK LEVER WAS STILL LOCKED, BUT NONE OF THE REAR DOGS WERE IN PLACE. ACFT WAS TAKEN OTS FOR OVERWT LNDG INSPECTION. SUBSEQUENT LOGBOOK ENTRY INDICATED PROPER WINDOW OP WITH NO MALFUNCTION. FIX CONSISTED OF OPENING AND CLOSING WINDOW. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTING FO STATES THAT THE CAPT TRIED TO CLOSE THE WINDOW WHILE AIRBORNE WITH NO SUCCESS. THE NOISE STARTED EARLY IN THE TKOF ROLL, BUT THE CREW CHOSE TO CONTINUE THE TKOF AS THEY WERE VERY HVY. THE NOISE WAS VERY LOUD, BOTH ON THE GND AND IN THE AIR, MAKING COMS IMPOSSIBLE FOR THE CAPT WHO WAS USING A C-CLAMP (COMPANY ISSUE) TYPE HEADSET.

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.