MW
Thanks for your comments. In addition to that, I realize now that I completely misinterpreted this graph as representing the actions of the aircraft. After a lot of careful reading, I see that the graph indicates, intermittantly, the settings within certain of the computers. These settings continued to have effect continuously, as I now understand it.
So I think my post will not be useful to the discussion and am going to delete it. I'll plead to being my own French translator.
Although, above @ #1556 CONF iture has posted this graph again, with the comment "Selected v/s was nothing else than -5000 ft/min ...". And he closes with "That thing is not minor, and must be addressed - Anything to do with the WRG message ?".
I'm noting that this -5000 fpm appears to be without flight deck input, so I'd say the graph is saying something critical to us.