Hi slats11,
OK. But this is at odds with Clandestino
It probably is - but I'm using BEA's reports as my reference, not something that Clandestino thinks.
So what exactly is the "change in background noise" noted twice at 02.08.17 and
02:09:40.
From the CVR report 2012, page 23:
"2 h 09 min 46. Background noise increases (typical noise of impact of ice crystals, identified by A330-340 pilots) "
However Clandestino states TAT did not rise during this period, and further that the FDR did not record a change in vertical acceleration.
The autopilot was engaged, flying ALT CRUISE. Why do you think there would be a change in vertical acceleration? The AP would simply reduce the pitch attitude slightly.
I posted the FDR TAT record in my previous, and the crew's observation of the TAT.
They are all classic symtoms of flying into CBs.
If Clandestino is correct, there must be another explanation for the increased temperature.
Excuse me if I don't hold my breath.