沈陽威亞具備各類航空器瓶體的翻修及膨脹系數測試能力。維修范圍涉及直升機應急系統，固定翼飛機的發動機、客艙、滅火系統及氧氣系統所裝備的滅火瓶、氧氣瓶、氮氣瓶、氦氣瓶等。Shenyang Avias has the capability to overhaul various kinds of cylinders of aircraft and to measure expansion coefficient. The maintenance scope include emergency system of helicopter and fire extinguisher, oxygen cylinder, nitrogen cylinder and helium cylinder used in engine, passenger cabin, fire extinguishing system and oxygen system of fixed wing aircraft.