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It has been changed after this incident. There is now an alert for dual input. The resulting Airbus system is better than traditional connected yokes, because i

It has been changed after this incident. There is now an alert for dual input. The resulting Airbus system is better than traditional connected yokes, because it doesn't have the unexpected opposite input anymore (with the alert) but it does also have an override switch for the captain's side. Which means you can overpower the first officer with just a button instead of physically having to wrestle for the controls. You can see it used here: https://youtube.com/shorts/nBmPXrBpp3Y https://youtube.com/shorts/nBmPXrBpp3Y You hear the normal 50.. 30.. etc. callouts and then when the captain goes full thrust you hear "priority left" which is the override button being pressed to pitch for go-around. That's much nicer than what we have teaching with traditional controls. Because at that point overpowering a startled pilot is a bit hard.

_cenw 3y ago
The Dual Input alarm wasn't added, in fact it sounded several times during the Air France flight. FDR visualization: https://www.youtube.com/watch?v=0a06A78iXnQ https://www.youtube.com/watch?v=0a06A78iXnQ
- t0mas88 3y ago
  Ah thanks. I thought I remembered from ground school that this was added afterwards. Interesting that the FO flying from the left seat did not recognise that callout as a big thing to react to.
bombcar 3y ago
Of course that introduces the problem of "what if the captain is the startled pilot" - can the first office override the captain?
- _cenw 3y ago
  Yes, but whoever hits the button last gets control, so you can take priority back. (Unless you manage to hit the priority button for 40 seconds - but I assume that's for locking out a broken stick that's doing inputs at rest)
- t0mas88 3y ago
  Yes it will announce "priority right", but it's not normal to take control from the captain (and also highly unusual to take control from the first officer outside of training). Unless you're avoiding an immediate safety threat you would normally call out the problem but not take control. It's a bit different for a training captain like in the video. They know these are the first officer's first landings on the real aircraft, so when things go wrong they take over.

_cenw 3y ago

The Dual Input alarm wasn't added, in fact it sounded several times during the Air France flight. FDR visualization: https://www.youtube.com/watch?v=0a06A78iXnQ https://www.youtube.com/watch?v=0a06A78iXnQ

t0mas88 3y ago
Ah thanks. I thought I remembered from ground school that this was added afterwards. Interesting that the FO flying from the left seat did not recognise that callout as a big thing to react to.

bombcar 3y ago

Of course that introduces the problem of "what if the captain is the startled pilot" - can the first office override the captain?

_cenw 3y ago
Yes, but whoever hits the button last gets control, so you can take priority back. (Unless you manage to hit the priority button for 40 seconds - but I assume that's for locking out a broken stick that's doing inputs at rest)
t0mas88 3y ago
Yes it will announce "priority right", but it's not normal to take control from the captain (and also highly unusual to take control from the first officer outside of training). Unless you're avoiding an immediate safety threat you would normally call out the problem but not take control. It's a bit different for a training captain like in the video. They know these are the first officer's first landings on the real aircraft, so when things go wrong they take over.