Finding no middle ground, Midcoast Aviation offers a leading edge in aircraft maintenance and FBO (fixed-base operation) services. Its comprehensive slate includes modification, ground handling, fueling, catering, and passenger services to corporate aircraft operators. The company works on such popular business jets as the Dassault Falcon , Gulfstream , and Hawker Beechcraft . Maintenance services are offered through its facilities in Missouri (Lambert-St. Louis International Airport), and maintenance and FBO services in nearby Cahokia, Illinois (St. Louis Downtown Airport). Midcoast Aviation is a subsidiary of Jet Aviation , which was acquired in 2008 by General Dynamics .