So now we have had two Airbus accidents where the PF kept pulling back on the stick of a stalled aircraft, and no one tried to stop him - possibly because they didn't even realize what he was doing.
It has been unfortunate in these two recent cases that the spoken "dual input" warning gets suppressed by the stall warning. But it seems that audio warnings go unnoticed in stressful situations anyway.
In fact, I can think of several warnings that might warrant a more robust way of getting the message across than there is today:
- Stall/approach to stall: Now spoken, and indicated by the speed tape. Add a stick shaker and a text message "Stall - pitch down" on the ECAM and the PFD.
- Terrain: Now spoken/whoop, and terrain painted on the NAV display. Add a text message "Terrain - pull up" on the ECAM and the PFD.
- Dual input: Now spoken, and indicator lights on the glare shield. Add a text message "Dual input - PF/PNF roles .. clarify" on the ECAM.
There's my wacky idea for today. But at least it would take less effort to implement than interconnected sidesticks.