DAC Engineered Products

DAC Engineered Products, also called DAC-EP, supplies FAA approved PMA parts, PMA brakes and CMM and DER repairs from Aurora, Illinois, in the United States. It serves airlines, MROs and parts brokers. Its aim is to give customers lower cost alternatives to OEM parts.

The company says it is a Production Approval Holder and an FAA certified Part 145 repair station. It supports both commercial and military aircraft. Its customers include operators and MROs of all sizes from around the world. On 1 November 2026 DAC-EP moved to a new home in Aurora.

PMA parts are reverse engineered parts that can replace the OEM part on an aircraft. They gain FAA approval for use as an alternate. DAC-EP says they often cost less and can be designed for better reliability and longer time on wing. It offers more than 60 PMA parts with over 165 part numbers. Its PMA range covers wastewater system sub assemblies, flight control components, engine parts, galley equipment, hydraulics and starter generators. It also develops PMA carbon and steel brakes as a lower cost option to OEM brakes.

DAC-EP repairs components under the CMM and offers DER repairs. A DER repair is an engineering approved alternative to replacing a worn or damaged part. The company says it often costs much less than a full overhaul and is usually done in under 30 days. DAC-EP offers about 25 DER repairs covering more than 55 part numbers. It repairs aircraft accessories for large commercial airlines, regional airlines, commuter and corporate operators, and parts brokers.

The company also makes owner and operator produced parts, called OOP parts. These are copies of parts already in use, made for a specific airline and used only on that airline's aircraft. DAC-EP offers more than 20 OOP parts for four major commercial airlines. Examples include phone parts, a DC starter generator, coffee maker parts and a bearing.

DAC-EP lists Delta, United, American, Alaska, SkyWest, Endeavor Air, Republic Airways, Turkish Technic, Lufthansa Technik, Duncan Aviation and Vertex among the companies it works with. Its values are quality, cost savings, customer service, reliability and valuing its team.

Services

• FAA PMA parts
• PMA brakes
• CMM repairs
• DER repairs
• OOP parts
• Component repair and overhaul
• Wastewater system sub assemblies
• Starter generators
• Flight control components
• Galley equipment