123 ARZ performs overhaul of An-12, Il-78 and Il-76 aircraft of different versions, aircraft engines Al-20 (K, M, D), D-30KP (KP2); retrofit of military modifications of An-12 and Il-76 aircraft for civilian purposes; overhaul of power plants TG-16 and TG-16M, propellers AV-68 and AV-72; repair of component parts for An-12 and Il-76 aircraft and aircraft engines Al-20 (K, M, D), D-30KP (KP2); painting of aircraft of different types including use of polyurethane enamels.