[Dog]

Something happened in the left wheel well....temp went up on the brake fluid sensor..

[Arkinsaw]

Something happened in the left wheel well....temp went up on the brake fluid sensor..

This was after the wing sensors went offline.

[steveegg]

NASA timeline:

7:53 am CST - Loss of temperature measurement in left inboard and outboard hydraulic.

7:56 am CST - Left gear brake line temperature increase.

7:58 am CST - 3 temperature sensors in the left wing structure were lost

7:59 am CST - Left inboard/outboard pressure/tire temperature measurements lost. First on-board indication for crew that there was a problem. Columbia still flying nominally.

8:00 am CST (approximate) - Last transmission from Columbia; all telemetry data lost.