Narrative:

The weather was variable clouds; winds 220/7 G 22; 36C; altimeter 30.15. The takeoff weight was 130.7. During the takeoff roll; the captain's number two window slid open at 90 KTS. I attempted to stow the window. I was unsuccessful. An abort was initiated at 120 KIAS. The plane slowed to less than 60 KTS very rapidly. We cleared the runway; informed the tower of the abort; and told them we needed no assistance. We informed the cabin of the abort. We ran the checklist. We determined that 58 minutes of cooling was required. We returned to the gate. Once at the gate; I went down to visually look at the landing gear. I did not notice anything unusual other than a little additional heat. I called dispatch and maintenance. We concurred that no logbook entry was required. I ordered additional fuel to bring us back to the dispatch fuel requirement. About twenty-five minutes into the cooling period; the fueler informed me that the number two; right; main tire had deflated. I went down and confirmed this. I called maintenance and they called contract maintenance. I made a detailed logbook entry. The tire was replaced. Once the number two captain's window opened; I should not have attempted to close it. An abort at first recognition would have allowed a lower speed stop. This would have allowed the brakes to work with less effort and less heat build-up.

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Original NASA ASRS Text

Title: B737-700 flight crew reports Captain's window sliding open during takeoff at 90 KTS. The takeoff was rejected at 120 KTS and flight returned to the gate for brake cooling.

Narrative: The weather was variable clouds; winds 220/7 G 22; 36C; altimeter 30.15. The takeoff weight was 130.7. During the takeoff roll; the Captain's number two window slid open at 90 KTS. I attempted to stow the window. I was unsuccessful. An abort was initiated at 120 KIAS. The plane slowed to less than 60 KTS very rapidly. We cleared the runway; informed the Tower of the abort; and told them we needed no assistance. We informed the cabin of the abort. We ran the checklist. We determined that 58 minutes of cooling was required. We returned to the gate. Once at the gate; I went down to visually look at the landing gear. I did not notice anything unusual other than a little additional heat. I called Dispatch and Maintenance. We concurred that no logbook entry was required. I ordered additional fuel to bring us back to the Dispatch fuel requirement. About twenty-five minutes into the cooling period; the Fueler informed me that the number two; right; main tire had deflated. I went down and confirmed this. I called Maintenance and they called Contract Maintenance. I made a detailed logbook entry. The tire was replaced. Once the number two Captain's window opened; I should not have attempted to close it. An abort at first recognition would have allowed a lower speed stop. This would have allowed the brakes to work with less effort and less heat build-up.

Data retrieved from NASA's ASRS site as of April 2012 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.