Duncan Aviation is the largest, family-owned maintenance, repair and overhaul (MRO) facility in the world providing complete acquisition sales and support services for business aircraft. We provide premier aircraft services–delivered on time–for a wide variety of business aircraft at our facilities across the United States. Owned and operated by the Duncan family since our founding in 1956, Duncan Aviation is well-known and respected by manufacturers and service providers around the world for our quality of service, our work ethic and our expertise.