For the third time in 15 days, Tucson firefighters were called to a vacant property near Davis-Monthan Air Force Base because of a fire in one of the abandoned buildings there on Thursday, Jan. 31. According to a Tucson Fire Department representative, the fire happened near 29th Street and Swan Road just before 8 a.m. It is not known yet how the fire started. The former DES property in the 4700 block of E. 29th Street contains vacant boarded-up buildings. The property has been the scene of three recent fires, one fatal, and TFD has been called out to the property five times in the past two and a half months. Most recently, crews responded to a fire there early on Jan. 21. Six days before that, one person died in a fire there on Jan. 16. No injuries were reported in Thursday’s fire.