When the first hijacked plane crashed into the World Trade Center, the New York Fire Department immediately responded. Officers set up a command center in the lobby of the north tower and bravely rushed up the stairs to rescue the trapped occupants and put out the raging fires. When the towers collapsed, numerous trucks were crushed, and 343 members of the New York Fire Department were killed.
This door is from a FDNY rescue pumper truck destroyed in the World Trade Center collapse. The truck belonged to Squad One of Brooklyn, part of FDNY’s Special Operations Command, an elite group of firefighters who respond to unique fire and emergency situations. Squad One lost 12 members on September 11.
Caption from the National Museum of American History's "September 11: Bearing Witness to History."