Airbus powers up Rolls Royce engines on the first A350 XWB
As part of the preparations of its first flight, the Rolls-Royce Trent XWB engines have been run for the first time on the Airbus A350 XWB (...

https://basevida.blogspot.com/2013/06/airbus-powers-up-rolls-royce-engines-on.html
As part of the preparations of its first flight, the Rolls-Royce Trent XWB engines have been run for the first time on the Airbus A350 XWB (MSN1) following the start-up of the Auxiliary Power Unit (APU).
The A350 XWB is the all-new mid-size long range product line comprising three versions and seating between 270 and 350 passengers in typical three-class layouts and is scheduled for entry-into-service (EIS) in the second half of 2014. 34 customers have placed 616 firm orders for the aircraft.
The A350 XWB is the all-new mid-size long range product line comprising three versions and seating between 270 and 350 passengers in typical three-class layouts and is scheduled for entry-into-service (EIS) in the second half of 2014. 34 customers have placed 616 firm orders for the aircraft.