Thanks for taking the time Dysag. I take it from that that there are no common components that could have caused both problems. Cheers.
I'm not sure about this though
but boxes 1 & 2, to make it simple, were designed by different teams and contain different components.
because if this is as good as it sounds then 2 of 3 AOA sensors wouldn't have frozen at the exact same time.
Framer