BY CHUKWUEMEKE IWELUNMO Rolls-Royce says it has signed a Memorandum of Understanding (MoU) for a comprehensive TotalCare service agreement with Ethiopian Airlines for 22 Rolls-Royce Trent XWB-84 engines. The Trent XWB-84 exclusively powers the Airbus A350-900 aircraft. TotalCare is designed to
