Air Chathams' introduction of its larger ATR 72 aircraft to the Whanganui-Auckland route has been delayed by a week.
The 68-seater plane was due to start operating on Friday, June 7, servicing the route at weekends for three months over winter.
However, Air Chathams general manager Duane Emeny said the flights would now begin on June 14 due to an administrative delay relating to the aircraft's maintenance programme.
There was no issue with the airworthiness of the plane, he said.
Air Chathams contracted Air NZ for the maintenance of the ATR 72 it bought in February.