bear, what it means to me is that what he's seeing doesn't make sense. You have instruments doing something unexpected or wrong, a scan breakdown, or both, or multiples of them.
What was he seeing? Apparently, not the same thing the PNF was seeing.
EDIT:
I just read the released (thanks for the translation) trail of discussion, spagiola.
My eyes are wet.
Oh, sweet Jesus.
EDIT 2:
Don't understand this
2 h 10 min 39 to 2 h 10 min 46
PNF: Je te mets en en A T T
I'm putting you in in A T T
I think I understand this
2 h 10 min 42
PF: On est en ouais on est en climb
We're in yeah we're in climb
2 h 10 min 49
PNF: (…) il est où euh ?
Uh, where is he?
PNF had already called for the captain.
He seems to have noticed things going pear shaped early, and called for help.