Air T Inc. operates in two industry segments, providing air cargo services to the air express delivery industry through its w ... holly owned subsidiaries, Mountain Air Cargo, Inc. ("MAC") & CSA Air, Inc. ("CSA"), and aviation ground support and other specialized industrial equipment products and services through its wholly owned subsidiaries, Global Ground Support, LLC ("Global") & Global Aviation Services, LLC ("GAS"). CSA Air, Inc. is an express cargo carrier providing flight and maintenance services in Michigan, Wisconsin, Minnesota, Indiana, and South Dakota. We operate 25 aircraft and fly approximately 34 scheduled flights per day. read more