2nd working fire within 2 hours, Chief 5 arrived with E51 and Ladder 1 to find a 2 story vacant wood frame with heavy fire showing, crews set up for a defensive attack after primary search was completed. Crews stretched a 2” and 1.75 along with ladder pipe. Units assigned were; E51,E5,E12,W1,L1,TL5, T5, t1, and Chief 5