"Our medic and doctor scrambled down the bank to assess the patient who was a man in his 20s."
Tayler said the man was assessed to have moderate injuries with a back injury appearing to be the worst.
Because of the steepness of the area, he needed to be winched out, he said.
"They prepared him and put him on our stretcher system and then because of how steep it was we thought it would be too risky to try and carry him back up there, so we winched him from where he was back onto the flat ground at the top."
The patient was then flown to Middlemore Hospital.
Tayler said the incident happened on farm land, at the edge of a rural property, where man had been riding in a paddock.
"Fortunately he was wearing a helmet, which was a good thing," he said.