Downey Aviation Services is uniquely positioned in the aviation world because of our wealth of experience and regulatory knowledge of aircraft certification regulations All this combines to give our clients optimum results. We offer a wide range of capabilities in Aviation support services, Civil Certification, Regulatory Affairs, Defense Aviation and Expert Legal Witness. Additionally, career OEM involvement enables us to bring about successful outcomes for our clients. We provide value-added, responsive, high-quality technical solutions to a wide range of customers.