Japanese carrier ANA Holdings cancelled 176 flights from July 13 through July 22 to inspect its Rolls-Royce Holdings engines, in addition to 113 flights it already cancelled for the preceding week.
ANA warned that further cancellations were possible in the following weeks. It would announce any cancellations for the rest of the month on July 12, and any August flight cancellations on July 17.
ANA had said last week that it would inspect engines for compressor issues that have led to service interruptions for airlines globally. The affected Rolls Royce Trent 1000 engines are used on ANA’s Boeing Co 787 Dreamliner jets, it said.
A compressor problem in the Trent 1000 package C engine has already led to planes being grounded by airlines such as British Airways, Virgin Atlantic and Air New Zealand.
In June, Rolls Royce said it had found the same issue on a “small number of high life Package B engines”.
ANA has been conducting inspections on Trent 1000 package C engines under instruction from Japan’s transport ministry, with an expansion of inspections to include package B engines leading to the flight cancellations, the airline said.