"I was done with the classroom thing, and getting paid to learn seemed like a great idea," he said.
As an aircraft technician on No. 40 Squadron he never knows what the day is going to throw at him.
"One day it is routine maintenance, dispatching and receiving the aircraft. The next day I am working on changing a propeller," he said.
"If I hadn't joined up I would probably be working on a car engine somewhere, but working on a complex system like these aircraft is a far greater challenge."
When he's not working on aircraft Corporal Lynch is involved in sport throughout the year. He represents the RNZAF at rugby and manages the RNZAF cricket team.
Exercise Mobility Guardian 17, which began on Sunday and ends on Saturday week, is practising Humanitarian Aid and Disaster Recovery (HADR) in a potentially hostile environment.