A total of sixteen Korean Aerospace T-50's have been procured by the TNI-AU and delivered to Skadron Udara 15 based in Iswahyudi as from 2013, replacing the BAe Hawk Mk53. The T-50's carry the serials TT-5001 through TT-5016, and "TT" stands for "Tempur Taktis" or Tactical Fighter. Unfortunately, TT-5007 was lost during a rehearsal for an open day in Yogyakarta on December 20, 2015, killing both crew.