The Waikato Westpac Rescue Helicopter was dispatched to SH1 near Lichfield, Tokoroa, at midnight Friday 26 October.
Two young men were involved in a serious crash when their vehicle left the road and rolled multiple times.
The driver had moderate injuries and was taken by road to Waikato Hospital.
The passenger, an 18 year old Matamata man, was seriously injured and airlifted to Waikato Hospital.