posted on Sep, 9 2007 @ 03:35 PM
Most probably what happened when the aircraft hit the towers, they took out the sprinkler systems on those floors. Not knowing the design, but having
a very good working knowledge of sprinklers...the system was probably tied together at some point and the risers that feed the system were damaged,
there was no water going to the fire floors. The sprinklers on the floors below would not have activated because there was no heat.