Kevin Hodgson, Director of Operations at the Great North Air Ambulance Service, worked alongside Captain Barnes for several years, flying on life-saving missions across the North.
Captain Barnes stopped working with the charity about four years ago.
“Pete was as good a guy as you can imagine and one of the best pilots I’ve ever had the pleasure of flying with.
Over the years he will have flown on dozens of missions, no doubt saving lives along the way.
Everyone at the charity is deeply saddened at this news.
Our thoughts are with everyone affected by the tragedy.”
More top news
'Disappointed but not downhearted.'
Kerrie Gosney brings you Saturday night's forecast
Hollywood star is mistaken for controversial referee with the same name.