11405 was one of 19 modified 737-200s in use with the USAF for training navigators. The T-43 was retired by the USAF Air Education and Training Command in 2010 after 37 years of service. They were initially assigned to the 455th Flying Training Squadron, part of the 323rd Flying Training Wing of the Air Training Command (ATC) at Mather AFB (CA). The 323rd was inactivated in 1993. 11405 made its first flight on 19 October 1973 and was delivered to the USAF on 4 November 1973. It was reited to AMARC on 19 April 2005 and received inventory code TH0005. It was scrapped by August 2018 with HVF West