Rockwell Collins is one of the leaders in providing the design, production and support of communications and aviation electronics for commercial and military customers throughout the world. It offers products for ground and shipboard applications. The company s Commercial Systems business segment supplies navigation, surveillance, and automatic flight control and management systems, cabin electronics and electromechanical pilot controls to the original equipment manufacturers of business and regional aircraft, as well as commercial airlines and business aircraft operators. Rockwell Collins Government Systems business segment provides communication and electronic systems for airborne and surface applications to the Department of Defense, defense contractors and civil agencies. It maintains a network of service centers worldwide. The company s subsidiaries include Athena Technologies, Anzus, SEOS and K Systems. In addition, Rockwell Collins offers preventive maintenance programs and calibration, overhaul, repair, maintenance and material management services.