Airmark Overhaul, Inc. - Provides repair and overhaul of Textron Lycoming and Teledyne Continental piston engines. Central Cylinder Service, Inc. - Aircraft engine and accessory overhaul and repairs. Aviation Engines, Inc - Specializing in aircraft engine repair and overhaul. Component Repair Technologies, Inc. - Provides turbine engine component repair and overhaul services. Harrison Engine Service, Inc. - A family owned and operated FAA approved aircraft cylinder repair station. Zephyr Aircraft Engines - Offers factory new tolerance overhaul of customer engines. Virtual shop and assembly tours, employee profiles and contact information. International Turbine Systems Inc. - Specialists in turbine engine overhaul, reapair and replacement. Heritage Turbines - Provides PT6 services. SIA Engineering Company - Providing aviation engineering services including maintenance, repair and overhaul of commercial aircraft, engines and related components. Turborreactores - Repair shop dedicated to maintenance of JT8D-200, JT8D-STD and TPE-331 engines, components, and accessories. Diemech Turbine, Inc. - Providing repair and maintenance facilities for Walter turbine engines. Euravia - England based company offering gas turbine repair and overhaul. Profile, services and capabilities.