The United Nations Mission in the Republic of South Sudan (UNMISS) hereby solicit Expression of Interest (REOI) from qualified Service providers for the provision of Aviation Network, Fleet and Schedule Planning Training for its personnel in Juba, South Sudan. Interested Service providers must be registered as a business entity providing training and with accreditation from Air Transport Association (IATA), Civil Aviation Organization (ICAO) or its equivalent. 1. Description of General requirements: a). Planning Air Assets b). Utilising Aircraft Resources c).Aircraft and Fleet Utilisation d).Scheduling Strategies e).Passenger Traffic Demand, Flight Schedule Data and Optimisation Tool