There's been another setback to Wellington Airport's proposed $330 million runway extension.
The Supreme Court has found the Civil Aviation Authority was wrong to approve a minimum safety extension of 90 metres at the end of the runway.
The court action dates back to 2015 when the Pilot's Association argued the safety areas on the proposed runway were hundreds of metres too short.
The runway extension was planned to allow larger jets to land in Wellington and make the airport more attractive for international visitors.
Wellington Airport had planned a 90-metre safety area, the minimum required under international aviation law.
The Pilot's Association said it is pleased the Supreme Court had recognised aviation safety as the most important factor.
The airport has not commented to Newshub about what will be happening next with the extension.