Air NZ's damaged 787 engine

More flights from Auckland Airport to Singapore

More flights from Auckland Airport to Singapore

In August last year, All Nippon Airways announced it would replace all 100 Rolls-Royce engines on its fleet of Boeing 787 Dreamliners following three engine failures earlier in the year.

And on Tuesday, the airline's flight to Tokyo Narita also returned to Auckland due to what the TAIC again said were "abnormal indications on one of the engines".

In the most recent incident a 787 was taking off from Auckland when the pilots noticed problems.

In a statement released today the Transport Accident Investigation Commission say they've opened inquiries into both events, with investigators having been on the ground in Auckland since Tuesday.

Air New Zealand has said problems with some of the Rolls-Royce engines on its aircraft have forced it to ground some global flights.

"Air New Zealand will be focused on finding replacement aircraft capacity", the airline said.

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"Rolls-Royce does not have any replacement engines available while this maintenance work is undertaken which means some schedule changes are unavoidable", Air NZ adds.

Customers affected by these changes will be proactively contacted with new travel information.

The Aviation Analysis Wing website reports this is the second engine vibration incident involving Rolls Royce Trent series engines this year. From October 2018 the airlines will increase to three daily services operating a combination of A380, Boeing 777 and Dreamliner 787-9 aircraft.

Nick Judd, Air New Zealand's chief strategy, networks and alliances officer, Nick Judd, added that the extra flight would be "especially appealing to travellers to and from Europe, India and southeast Asia".

"It's not uncommon for long-term engine programmes to experience technical issues during their life and we manage them through proactive maintenance", a Rolls-Royce spokeswoman was quoted as saying by Reuters.

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