However, they had to call off the search because of the low cloud.
The search continued this morning, with helicopters back in the air and ground search and rescue teams scouring the area north of Arthur's Pass, by Deception River and Goat Pass.
At around 8.30am today a passing helicopter not involved in the search spotted the grounded machine around Goat Pass and made contact with the pilot, Maritime NZ spokesman David Graham said.
"It was a bit of luck really," he said.
The pilot did the right thing by putting the machine down when flying into the low cloud, Graham said.
He is said to be safe and well.
It's yet not clear whether the pilot has flown his own machine out of the mountains this morning.