Yves Leroy
I think you might be talking about my father Yves Le roi who worked for Okanagan Helicopters back in the 1970s and may have assisted Bristow from time to time. I will have to talk to him about it.
He is now retired and still in good health at the aged of 74
I also work in the Helicopter Industry for Vector Aerospace here on the west coast of Canada
His daughter
Katell