Air New Zealand Boeing 737, similar to that which had a mid-air incident on the way to Auckland.
Air New Zealand Boeing 737, similar to that which had a mid-air incident on the way to Auckland.
Air New Zealand could not find any fault with the aircraft involved in a cabin depressurisation scare last month.
The Boeing 737-300 experienced a gradual loss of cabin pressure between Wellington and Auckland on August 30, causing the oxygen masks to deploy in the cabin.
The aircraft descended to 7000feet, at which point oxygen masks were no longer required.
Airport emergency services were put on standby in Auckland but the flight landed safely.
An Air New Zealand spokesman said its investigation was unable to find any issue with the aircraft's pressurisation system, however, some of the components were replaced as a precaution.
