Air New Zealand is canceling six international flights and reschedule others between 7 and 10 December to accommodate urgent maintenance on the Rolls-Royce Trent 1000 engines that power its Boeing 787-9 fleet.
Following two recent incidents involving Air NZ 787-9s that occurred on 5 and 6 December, Rolls-Royce has advised that its fleet’s Trent 1000 engines “require maintenance sooner than previously indicated”. Both incidents involved the engines during climb on takeoff from Auckland, forcing them to turn back. The Trent 1000 engine has faced some technical hitches, which the manufacturer has been working hard to resolve, with a wide range of operators in recent years.
Rolls-Royce has already issued a service bulletin early this year calling for increased inspections of the compressor’s rotor section as an interim measure to address possible cracking in the intermediate pressure compressor of the engine. It is working towards a permanent solution. The investigation into an incident in November 2016 where starboard engine of a Scoot 787-9 failed enroute to Sydney, it was recommended that Rolls-Royce review the design of the intermediate pressure turbines.