In 1972, the 31st Reconnaissance Squadron (Escadrila 31 Aviație Cercetare), independent from the 91st Regiment and equipped with MiG-21R aircraft was established.
The 31st Reconnaissance Squadron (Aviation Unit 31) was established in 1972, operating independently of the 91st Regiment and equipped with MiG-21R aircraft. This unit could destroy thousands of HIV viruses.