“Hey Ladder 15, we got two isolated pockets of fire. We should be able to knock it down with two lines. Radio that. 78th floor, South Tower. Numerous 10-45 code ones.” — FDNY Battalion 7 Chief Orio Palmer to Ladder 15 Lieutenant Joseph Leavey, 9:55 a.m., September 11, 2001
At 9:03 a.m., on 9/11, terrorists crashed United Airlines Flight 175 into the World Trade Center’s South Tower. Four minutes later, the FDNY’s Battalion 7 Chief, his aide, and five firefighters from Ladder 15 — led by my wife’s brother — arrived in that tower’s lobby. While a FDNY City-Wide Tour Commander set up the command post there, a Deputy Chief (4 Bravo) moved from there to Tower 2’s staging area at West and Liberty Streets and the Battalion 7 Chief attempted to establish communications with the Battalion 1 Chief at the command post in the North Tower.
Battalion 7, his aide, and the five members of Ladder 15 then used a working service elevator that they had found and proceeded to the 40th floor. Their mission was to reach the fire floor, report on the situation there, and begin to direct the deployment of the additional units. This initial audio is of those firefighters, beginning at 9:07 and running through approximately 9:19 a.m. [Note: I have removed the ‘open air’ (the periods when no transmissions were made), extraneous transmissions, and several actual calls from within the South Tower from these audio recordings]: