This from Eric Haak:

At 4:45 Sunday afternoon (7/31), I followed Engine 65 and Truck 52 down Archer Avenue to this working fire at 36th and Rockwell.  They knocked it down from the back door and then went inside and mopped it up.  The fire appeared to be contained to the back porches and was essentially out in a few minutes.  Engine 65 was in the spare rig and Engine 39 dropped a second line through the front door.
heavy smoke from house fire

Eric Haak photo

Chicago FD spare engine at fire scene

Eric Haak photo

aftermath of house fire

Eric Haak photo

aftermath of house fire

Eric Haak photo

Chicago FD Engine 39

Eric Haak photo