Actually, I was only an observer (which was fun; I got to take these pictures). District 19B ran this fire. It was the second in a series of (probably arson) fires that District X responded to within a period of maybe twenty minutes. Engine A arrived on scene first, initiated offensive attack, was withdrawn after District X ordered defensive attack.
This was first time acting engineer on E-A pumped on a working structure fire. He had supply line laid and attack lines properly pressured upon our arrival (about five minutes after dispatch).
District X's defensive attack brought the fire under control in about 15 minutes.