The plane had been in a holding position, circling above the airport, as it waited for emergency services to get into place, she told NZME News Service earlier.
Fire crews were on standby next to Runway 25 at Ardmore about 2pm when the plane came in to land.
"They can't confirm the landing gear is down, so it's currently in a holding position circling above," Ms Ramsay said.
"We've responded for a precautionary reason. It does sound as though they are going to attempt to make an emergency landing."
The airport was holding a New Zealand Warbird event today - titled "Salute to Military Aviation" - from 10am until 4pm.
It is not known how many people were at the event.
Static displays as well as practice flying displays were on the agenda, with plane fans given the chance to win a flight in a Warbird with their ticket purchase.
NZ Warbirds tweeted the event was kicking off just after 10am.
"Little wet at Ardmore but the show is still on!! Warm clothes and a raincoat in case of more showers are the order of the day."