Abstract: At approximately 12:05 a.m. on February 5, 1992, the Indianapolis Fire Department received a call for a fire at the Indianapolis Athletic Club. Employees #1 through #6 and 67 other fire fighters responded to the call. Employee #1 was attempting to leave a third floor area due to a short air supply when a flashover fire occurred. He became disoriented and Employees #2 and #4 responded to assist him. Another flashover occurred, killing Employees #1 and #2, and severely injuring Employee #4. Employees #3, #5, and #6 were caught in the same flashover, but were not as seriously injured. A flashover occurs when intense heat and gases are exposed to oxygen in a confined space, causing all flammable materials to ignite. Fire fighters have no means of telling when this will happen. This flashover could have been prevented if sprinklers had been installed.