Athletic Club/Sports Facility, Other Business Knoxville, TN – Sprinkler system activated for grease fire at Thompson-Boling Arena February 26, 2019 viking210 Knoxville Fire Department responded to a small grease fire that activated a sprinkler head at Thompson-Boling Arena Friday afternoon. According to KFD Capt. D.J. Corcoran, there was a little smoke and water in the area of the concourses, and firefighters had it under control within 10 minutes. No injuries were reported. So far, no scheduled events are said to be affected although there is a Winter Jam event at the arena Friday night.