State-of-the-art maintenance, repair and overhaul services for RR M250 engines, modules and accessories. At ETI, optimizing your helicopter operation is our priority. We pride ourselves on offering top-of-the-line services, a fast response and solutions that are tailored to your exact needs. No matter where you are in the world, you can count on our knowledgeable team and cutting-edge facilities for around-the-clock service. Our goal is to help you maximize your business by minimizing your downtime, as well as your inventory, spare-part and operating costs.