Business Fields & Segments
MTU Aero Engines' business activities are based on three pillars: the commercial business with the commercial OEM and spare parts businesses, the military engine business, and commercial maintenance, repair and overhaul (MRO) business. For the purposes of accounting, MTU's business activities are broken down into two segments: The first segment – the OEM (Original Equipment Manufacturing) business – comprises the commercial and military engine businesses, since they share the production, development, and miscellaneous other capacities. The second segment – the MRO (Maintenance, Repair and Overhaul) business – comprises MTU's commercial maintenance activities. The revenues are accounted for separately for each of the three main business units. All other financial key figures are shown for the two OEM and MRO business segments.