The spokesman said the Auckland and Coromandel Westpac Rescue Helicopter services were tasked to nine missions on New Year's Day yesterday.
"This makes it our second busiest day on record," he said.
The busiest day was last New Year's Day when there were ten missions.
Other incidents included being called to the light plane crash that claimed the life of Dean Voelkerling, operations manager at the Northland Emergency Services Trust and a Northland Rescue Helicopter pilot.