savrin:
How do you fit your analysis with this from the BEA note?
At 2 h 10 min 16, the PNF said "so, we’ve lost the speeds" then "alternate law […]".
You state:
My take is PRIM2 reverted alone to Normal, while PRIM1 & PRIM3 latched Alternate 2. This is because PRIM2's set of ADR data, being different (only ADR2 & ADR3), would have allowed differences into the 50 kts range that triggers reversion to Normal law.
<snip>
At 02:10:16, the pitch-up sequence and "zoom-climb" happened with (according to my research and "flimsy theory") PRIM1 & PRIM3 in Alternate 2 and PRIM2 in Normal. 20th Jun 2011 05:55
Unfortunately, based on the voice comment above, I seriously doubt the control law in effect was Normal during the "zoom-climb" event, unless you are saying that the PF controls were in Normal, while PNF was seeing Alternate (but my understanding is that this is not possible).