Air carrier large transport first officer's sliding window starts to open during takeoff roll. Takeo...

Attributes
ACN	98141
Time
Date	198811
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zma
Operator	common carrier : air carrier
Make Model Name	Large Transport, 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 : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 185 flight time total : 14000 flight time type : 375
ASRS Report	98141
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Bos-atl departed gate on time (FAA air carrier safety inspector in jumpseat) taxied to runway 27 for takeoff. All procedures and checklists routine. When takeoff power (EPR) applied and roll began, first officer's sliding window crept open during acceleration and low speed (80 KTS or less) abort initiated with no problem. After turn off window recycled and locked. Brake temperatures checked, checklists reread, and flight then made normal takeoff and flight to atl where maintenance met aircraft. Supervisors made examination of window and remarked that problem has occurred with fleet in past due to rigging problems and that they would rerig window for next flight. Normal preflight observing 'closed' sign handle forward and cylinder at 90 degrees did not prevent incident. It was fortunate that window opened at low speed and not at high speed takeoff or while airborne. These windows have no warning (caution) lights, as do those on entry and cargo doors, verifying to the pilots by EICAS that they are not locked. Perhaps these lights or more positive locking mechanism can be considered.

Original NASA ASRS Text

Title: ACR LGT FO'S SLIDING WINDOW STARTS TO OPEN DURING TKOF ROLL. TKOF ABORTED, WINDOW RECYCLED AND TAXIED BACK FOR SECOND TKOF.

Narrative: BOS-ATL DEPARTED GATE ON TIME (FAA ACR SAFETY INSPECTOR IN JUMPSEAT) TAXIED TO RWY 27 FOR TKOF. ALL PROCS AND CHKLISTS ROUTINE. WHEN TKOF PWR (EPR) APPLIED AND ROLL BEGAN, F/O'S SLIDING WINDOW CREPT OPEN DURING ACCELERATION AND LOW SPD (80 KTS OR LESS) ABORT INITIATED WITH NO PROB. AFTER TURN OFF WINDOW RECYCLED AND LOCKED. BRAKE TEMPS CHKED, CHKLISTS REREAD, AND FLT THEN MADE NORMAL TKOF AND FLT TO ATL WHERE MAINT MET ACFT. SUPVRS MADE EXAMINATION OF WINDOW AND REMARKED THAT PROB HAS OCCURRED WITH FLEET IN PAST DUE TO RIGGING PROBS AND THAT THEY WOULD RERIG WINDOW FOR NEXT FLT. NORMAL PREFLT OBSERVING 'CLOSED' SIGN HANDLE FORWARD AND CYLINDER AT 90 DEGS DID NOT PREVENT INCIDENT. IT WAS FORTUNATE THAT WINDOW OPENED AT LOW SPD AND NOT AT HIGH SPD TKOF OR WHILE AIRBORNE. THESE WINDOWS HAVE NO WARNING (CAUTION) LIGHTS, AS DO THOSE ON ENTRY AND CARGO DOORS, VERIFYING TO THE PLTS BY EICAS THAT THEY ARE NOT LOCKED. PERHAPS THESE LIGHTS OR MORE POSITIVE LOCKING MECHANISM CAN BE CONSIDERED.

Data retrieved from NASA's ASRS site as of August 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.

Air carrier large transport first officer's sliding window starts to open during takeoff roll. Takeoff aborted, window recycled and taxied back for second takeoff.