Detailed hypothesis.
P2 (handling pilot) is a Frenchie with 2,000 hrs. Check the AF447 accident report (
http://www.bea.aero/docspa/2009/f-cp090 ... 601.en.pdf), which has a similar P2.
These junior guys do
not know how to fly. There is nowhere near enough real handling on their training courses.
Clearly neither of them expected the autopilot to trip out on pulling the second CB. It was nine seconds before they noticed the aircraft at 54 degrees left bank. Poor systems knowledge.
Wouldn't be surprised if one of them was completely out of seat operating the CB (panel is behind the crew),and the other was watching him or concentrating on the checklist
Handling pilot panicked, huge pitch input and bank all over the place.
Captain can't speak English - instructed P2 to "Pull Down". P2 responds to first word.
Later on, we get "Pull", "Pull down" and "Pull Up". At no point is there a "Push down"
The two pilots are opposing each other on the sticks, and the airbus takes the average (how stupid is that?!).
There is, of course, no cross-feedback like mechanical sticks - I bet the P2 was unaware the Captain was inputting.
At no point does the Captain state he is taking control verbally. He's reverted to type and, with a combination of single seat time and the Asian authority gradient, isn't communicating effectively to the P2.
Like AF447, this goes on for 3 and a half minutes plus.
Absolutely no one in the aviation system is going to admit the entire training process is abysmal, because they like the profits and this kind of thing happens rarely enough that the punters don't care, but that's the reality.