American Aero Services

Code 1 Aviation

Specializes in L-39 and jet warbird maintenance, restoration, inspections, overhauls, modifications, avionics, parts, painting, and even mechanic training! They can provide pre-purchase inspections, owner consulting, aircraft shipping services, AI-25TL engine overhaul coordination services, and more. Code 1 is conveniently located directly across from the Courtesy Aircraft ramp at the Rockford, IL airport (KRFD).

Heritage Aero, Inc.

Quality Warbird and Civilian Aircraft Maintenance Services and Parts Sales.

Heritage Aero, Inc. offers quality maintenance services for most military aircraft that are in civilian hands today. In addition, they provide maintenance services for a wide variety of civilian general aviation aircraft. Heritage Aero also specializes in disassembling and crating aircraft for shipment worldwide.

Precision Engines Corporation

Precision Engines’ reputation is based on expert workmanship, advanced overhaul equipment and strict standards of quality control. By using the finest parts available (newly manufactured if need be), excellent machining capabilities, and the most modern, well equipped radial engine test facility in the industry, Precision Engines serves cargo fleets, fire fighters, militaries, nostalgia operators, collectors and museums throughout the world.