Airlines are grounding Boeing 787s for urgent maintenance as one of the engines on Air New Zealand Boeing 787 flight NZ99 failed in-flight this week.
The photos of failed engine show damage to multiple turbine blades, suggesting a part broke off and travelled through the engine.
Tuesday 5th December Air New Zealand flight NZ99 bound for Tokyo with 282 people on board started to shake violently shortly after takeoff when one of the engines failed in-flight. Passengers heard clunking sounds and electrical power went out temporarily after takeoff from Auckland airport.
Again on Wednesday another Air New Zealand Dreamliner bound for Buenos Aires also had to turn back to Auckland due to engine problem.
Air New Zealand spokeswoman said: “The cause of these incidents is yet to be determined and this is the role of the Transport Accident Investigation Commission. But the damage sustained on Tuesday suggests an engine part has travelled through the engine.”
This is the second vibration incident involving Rolls Royce Trent series engines this year. An Air Asia A330 returned to base after severe in-flight shaking in August,2017.
Japanese airline ANA first reported issues with Trent 1000s in the summer of 2016. The problem was thought to relate to blades in the turbine corroding far earlier than expected. A few weeks later Virgin Atlantic reported similar issues with its Trent 1000 engines. Both airlines took aircraft out service for urgent maintenance, causing hundreds of flight cancellations.
Rolls Royce which has more than 400 engines in service has acknowledged the problems. At the company’s half-year results in August it warned investors to ‘expect increased activity in second half related to Trent 1000 maintenance programme to address a number of technical issues”.
In response to the latest troubles Rolls said: “It’s not uncommon for long-term engine programmes to experience technical issues during their life and we manage them through proactive maintenance. This is the continuation of work which started last year to upgrade Trent 1000 engines to the latest standard.”