Rolls-Royce has warned that problems with its Trent 1000 engines will take longer than expected to repair.
This warning means that a reduction in the number of grounded aircraft will be slower than anticipated and that delays would continue until the second quarter of 2020.
This news air a setback for Rolls-Royce, but one the group has anticipated would take place, following its financial results report in August.
The group reported that premature blade deterioration continued to cause Boeing 787 operators “significant disruption”. It was also said that in-service costs are set to increase by a total of £100 million across the next three years.
A statement from Rolls-Royce said: “We deeply regret the additional disruption that this will cause our customers and we continue to work closely with them to minimise the impact on their operations,” the company said in a statement on Friday. It said its guidance for the cash costs of the in-service issues in 2019 and 2020 remained as previously announced in August.