Manufacturing, Manufacturing Plant Parts manufacturing plant fire controlled by it’s fire sprinkler system (Cookeville, TN) July 10, 2013 viking210 A fire broke out in a large motor that helps manufacture water heater parts, and the synthetic oil used to cool the motor then caught fire. The heat from the fire activated the plant’s fire sprinkler system, which then contained the fire until fire crews arrived and eliminated the remaining flames. No one was reported injured in the fire.