I was a bit surprised to hear that Gsm had lost its etops approval. I operated the B767 on many etops flights and everything was above board, having been to sanford/calgary/vancouver/toronto/capetown and on 757 barbados/new york/toronto. We used 180 for 76 and never really anymore than 138 on 75, wasnt needed.
We never had an engine problem on 767 neway or any nav problems and have also been as far north as 68N everythink working.
I know on Iceair 757 which was wetleased there were a few shutdowns
I hear and read the Dfo has been replaced by Bob........
now thats a gent in all senses, hard working crew orientated professional. Hope commercial consult him before just launching a service.
So whats goin on
I know nothing of the way the B737 series was operated except it seemed to stop alot....dont know the aircraft