The US Air Force has received the 150th KC-10 Extender aerial refueling tanker from Northrop Grumman’s maintenance depot. These depots are located in Lake Charles, Louisiana, as well as Greensboro, North Carolina. Since 2009, Northrop Gunman has been the prime contractor on the KC-10 Extender. The company provides logistics support, depot maintenance, supply chain management, engine management, and overhaul services for aircrafts. They also work with MTU Maintenance, AAR, Chromalloy, AAR and TICO Life Care to deliver these services.