[jacquesgt]

You may be right about the averaging. From rereading the accident report, the Pilot Flying took back control of the plane after the Pilot Not Flying engaged his controls and tried to pitch down.

But, it’s the same basic idea. The PNF thought he’d gotten control of the plane, and didn’t understand why his input wasn’t having an effect. He didn’t get feedback from the stick telling him a different input was being honored. And neither pilot appears to have been fully aware that they were in a flight control mode where there was a risk of stalling. The PF especially never seemed to have made that connection, and the PNF took a fairly long time to call it out. As a result, the PF may not have been aware that he needed to actively keep the angle of attack inside the flight envelope.

So, PNF tries to pitch down, but isn’t aware the plane got put back into a mode where he isn’t in control. PF is pitching up, but isn’t aware the plane switched to a mode where this could lead to a stall. That’s the similarity I was getting at.

[marksweston]

It’s weird to me how persistent this story is.

From the reported control traces, there was no prolonged period of dual input. There were 3 or so brief moments of dual control input (1 - 2 seconds), during which a warning was sounded. The pilots never spoke out loud about it, but we can infer that they heard the dual input warning and were aware when it happened because the sequence of events was the same each time; inputs from both joysticks received -> aural dual input warning -> input from one joystick stops.

Something about the idea of two pilots inadvertently fighting each other for control of the aircraft has definitely caught peoples’ imagination. But it didn’t happen.

[jussij]

100% correct.

The available evidence suggest this averaging thing never happened and certainly was not the cause of the crash.

What we have is situation of two pilots in close proximity to each other not communicating and the captain unfortunately caught in the toilet.