The door to the cockpit fell off during the flight. (File photo)

The cockpit door fell off its hinges on a light aircraft before it came into land in Queenstown on Sunday.

A Queenstown Airport spokeswoman said the pilot of a private light aircraft, which had two passengers on board, radioed ahead to warn ground crew there could be "a concern" during landing because the cockpit door had fallen off.

Precautionary emergency procedures were initiated in case anything went wrong, she said.

Fire and Emergency New Zealand spokesman Mau Barbara said emergency services were called to the airport, on Sir Henry Wigley Drive in Frankton, at 10.13am as back up.

READ MORE: Cockpit door drama on Air NZ jet

The plane landed without incident and the crew was not required, he said. The passengers and pilot made it off the plane without injury and the door would be fixed.

"Luckily everything turned out alright," the spokeswoman said.

Queenstown Airport was once voted one of the top 10 most thrilling airports in the world for arrivals and departures, and took home the title of having the most scenic airport landing in an annual poll conducted by international private jet booking service PrivateFly in 2015.

A cockpit or flight deck is the area, usually near the front of the aeroplane, from which a pilot controls the jet. After the terror attacks on the Twin Towers in 2001, all major airlines fortified their cockpits against access by hijackers.