On July 28, 2008, an apartment fire killed Lois Day, 84, on the seventh floor of 5535 Columbia Pike. The following units - from Arlington County and Fairfax County - responded to the mutual box: Engines 410, 101, 109, 102, Rescue 109, Truck 410, Tower 104, Medics 101 and 410, Battalion 111, EMS 111 and Safety 114, according to the web site of IAFF Local 2800.