I just looked at the CVR transcript for the first time in a while.
What do people think of the sudden smell of ozone, and the sudden change in perceived cockpit temperature (noted by both crew, and sufficient that PF asks PNF if he did something to the A/C).
It seems odd that in an 11 hour flight, this should occur only a minute before presumed pitot freezing
I am sure this has been discussed previously, but I can't find any reference to it.
Thanks in advance.