Takeoff aborted - flight crew rejected takeoff due to a window pressure leak.

Attributes
ACN	300481
Time
Date	199503
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
ASRS Report	300481
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 270 flight time total : 9000 flight time type : 500
ASRS Report	300482
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : rejected takeoff other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Upon advancing throttles for takeoff I noticed a hissing sound from the captain's side window. Window appeared closed and locked. Hissing worsened captain elected to discontinue the takeoff roll at approximately 70 KTS. He cleared the runway confirmed that the window as closed and locked. It was! Opened and inspected window and seals reclosed and locked the window. Proceeded with new takeoff without incident. Can only guess that the window was not sealed.

Original NASA ASRS Text

Title: TKOF ABORTED - FLC REJECTED TKOF DUE TO A WINDOW PRESSURE LEAK.

Narrative: UPON ADVANCING THROTTLES FOR TKOF I NOTICED A HISSING SOUND FROM THE CAPT'S SIDE WINDOW. WINDOW APPEARED CLOSED AND LOCKED. HISSING WORSENED CAPT ELECTED TO DISCONTINUE THE TKOF ROLL AT APPROX 70 KTS. HE CLRED THE RWY CONFIRMED THAT THE WINDOW AS CLOSED AND LOCKED. IT WAS! OPENED AND INSPECTED WINDOW AND SEALS RECLOSED AND LOCKED THE WINDOW. PROCEEDED WITH NEW TKOF WITHOUT INCIDENT. CAN ONLY GUESS THAT THE WINDOW WAS NOT SEALED.

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.