Southern Sky Maintenance (SSM) is an independent maintenance shop at the Southern Illinois Airport (KMDH) providing a full range of aircraft maintenance services. SSM is owned and operated by the Southern Illinois Airport Authority, and managed by Zac Fager. In business since 2012, we offer a vast array of general aviation maintenance on various types of aircraft. With affordability in mind we offer our Annual Inspections at a Flat Rate price. We are also capable of providing assistance with progressive inspections, conditional inspections, single and twin engine, major and minor alterations, repairs, as well as engine repairs, overhauls, removals and installation. We also have oxygen, and nitrogen servicing available. Our maintenance shop, parts department, and offices are located within the historic Hangar 1 on the northeast corner of the airport campus. We are open from 8am - 5pm Monday through Friday, except Holidays. We are also available after hours with advance notice and for any emergencies.