Hello,
I think a "coffin corner" due to a sudden change in the air temperature is a strong possibility.
My question is not about what did make the flight fall.... is about why the AF crew didnīt avoid that CB (more than 35,000 feets tall), specially when an IB flight behind them request a change of route to avoid this (and one could supose that the AF crew listened the request)...pilots use to avoid this areas.
I think this is the very first question. The whole thing would be ressumed in two questions:
1) Why did it enter the CB, 2) What happened inside?
For the first question, several things have been argued, most of them banned, such as the problem with the radar on AB.
What I find intringuinly is why this forum is banning pilots who weekly fly the leg SouthAmerica - Europe on AB330/340 and knows very well what they are talkinī about...