The Engine from 37 was clearing a run in 46’s area when they were dispatched as the working fire engine to an apartment fire in 33’s first due. First arriving units had fire on all three floors. Upon arrival the engine company had their own hydrant outside the complex, the crew stretched a 650’ attack line to division 1. They found extension in the laundry room and a bathroom in the terrace level. The incident grew to a 2 alarm+, before being brought under control. They operated approximately 3hrs before returning to service.