Air New Zealand has lost two of its 11 state-of-the-art Boeing 787-9 Dreamliner aircraft with their engines being sent off to Singapore for maintenance following a world-wide issue with the type's Rolls-Royce power plants.
Eariler this month, European aviation regulator EASA ordered airlines to carry out earlier than usual maintenance checks on a specific part of the Trent 1000 engine compressor.
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It affected around 380 of the twin-engined aircraft around the world.
On Saturday, Air New Zealand said that following checks, two of its Dreamliners would be out of action while their engines were removed to be sent for maintenance in Singapore.
With the number of airline engines being worked on, it could be some months before the Air NZ engines are returned.
"Unfortunately this will mean disruption for our customers in the coming months as we adjust our schedule and fleet utilisation," said the airline's Captain David Morgan.
Schedule changes will be published in the coming days.
The airline is looking at a range of charter options, which will include re-introducing charter services operated European carrier Hi Fly next month.
Capt Morgan said Air NZ remained fully compliant with the directives of EASA, the US aviation regulator FAA, and Rolls-Royce - which were taking a conservative approach in the interests of safety.
"Customers travelling on our Dreamliner aircraft can be very confident in the integrity of the engines."