The European Union Aviation Safety Agency (EASA) has officially certified the Airbus A350-900 fitted with the new Rolls-Royce Trent XWB-84 enhanced performance (EP) engine. This milestone marks a significant improvement in aircraft efficiency, as the upgraded engine promises a one percent reduction in fuel consumption. Such gains are expected to lower overall operating costs for airlines while also contributing to environmental sustainability through reduced emissions.
The Trent XWB-84 EP represents a notable evolution from the engine currently powering the A350-900. The improvements include refined aerodynamics in the fan, compressor, and turbine, as well as better cooling mechanisms for turbine blades. These technical enhancements are the result of a comprehensive development process involving extensive ground and flight testing. The certification serves as a testament to the continuous advancement of the A350-900 and the Trent XWB engine family since the aircraft’s debut a decade ago.
With EASA’s approval secured, the next step will be certification by the United States Federal Aviation Administration (FAA), which is expected shortly. This will enable airlines around the globe to begin using the new engine variant in operational fleets.
Airbus’ Head of Widebody Programme, Julien Puyou, commented that the certification further cements the A350-900’s reputation as the long-range leader and highlights the company’s dedication, in partnership with Rolls-Royce, to ongoing innovation. He emphasised that while the Trent XWB-84 is already among the most efficient widebody engines available, the enhanced version will offer even greater performance benefits to customers.
The A350 family is widely regarded as the most modern and efficient aircraft in its class, especially in the 300–410 seat range. Its use of cutting-edge technologies, advanced aerodynamics, and lightweight materials allow for a 25% improvement in fuel burn, operating costs, and CO₂ emissions. Additionally, its Airspace cabin delivers a modern, comfortable experience for passengers and crew alike.
