Since the entry into service of the Trent 1000 TEN, Rolls-Royce has communicated to operators that the high-pressure turbine blades in these engines would have a limited life of 1,000 cycles.
Working with operators, we have been sampling a small population of the Trent 1000 TEN fleet that have experienced a higher frequency of flights at the upper end of their operating range. This work has shown that a third of the fleet needs to have their blades replaced earlier than scheduled.
In anticipation of limited turbine blade life, our engineers have already developed and are testing an enhanced version of this blade.
We continue to work closely with any impacted customers to deliver an accelerated programme to implement the enhanced blade and to ensure that we can deliver on our Trent 1000 TEN future commitments. We regret any disruption this causes to airline operations.
For information about the separate durability upgrades to the Trent 1000 Package B and Package C engines, see our updates hub.