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I'd be hesitant to compare these. The aircraft still operated as designed. It detected that the input data was bad and turned the automation off. The pilot flyi

by _cenw 3y ago

I'd be hesitant to compare these. The aircraft still operated as designed. It detected that the input data was bad and turned the automation off. The pilot flying just didn't seem to grasp what that means. Most Tesla Autopilot failures aren't drivers that don't know how to drive, it's the automation making bad inputs.

mardifoufs 3y ago
No, some warnings were also thrown away and never shown to the pilots because the automated systems thought they were erroneous (since they were so outside the flight envelope IIRC).
- _cenw 3y ago
  If by warning you mean the audible stall warning - that's because below 50 knots, the airspeed is considered unreliable / erroneous, because to get to that speed without flaps you'd have to be stalling the aircraft for over a minute (getting that exact warning) and surely nobody would manage to do that... As I said elsewhere, the airplane was quite literally falling as fast as it was moving forward. I don't really fault the plane for considering that condition erroneous. And it didn't throw away a warning, it instead marks the speed tape with a bright red "SPD" instead of showing any airspeed. This is likely the better alternative over getting persistent stall warnings if one of your airspeed indicators fails. Here's how that condition would've looked: https://docs.flybywiresim.com/pilots-corner/a32nx-briefing/pfd/flags-messages/ https://docs.flybywiresim.com/pilots-corner/a32nx-briefing/p...
  - mardifoufs 3y ago
    Actually, you are right. I think I either got confused with another crash or thought it was more than just the audible stall warning. And I totally agree, there's no good solution to helping the pilots in such a catastrophic situation. They were probably going to ignore audible warnings and most visual cues anyways, considering how tunnel visioned they were from the moment the auto pilot gave back the controls to the pilots.

by _cenw 3y ago

mardifoufs 3y ago

No, some warnings were also thrown away and never shown to the pilots because the automated systems thought they were erroneous (since they were so outside the flight envelope IIRC).

_cenw 3y ago
If by warning you mean the audible stall warning - that's because below 50 knots, the airspeed is considered unreliable / erroneous, because to get to that speed without flaps you'd have to be stalling the aircraft for over a minute (getting that exact warning) and surely nobody would manage to do that... As I said elsewhere, the airplane was quite literally falling as fast as it was moving forward. I don't really fault the plane for considering that condition erroneous. And it didn't throw away a warning, it instead marks the speed tape with a bright red "SPD" instead of showing any airspeed. This is likely the better alternative over getting persistent stall warnings if one of your airspeed indicators fails. Here's how that condition would've looked: https://docs.flybywiresim.com/pilots-corner/a32nx-briefing/pfd/flags-messages/ https://docs.flybywiresim.com/pilots-corner/a32nx-briefing/p...
- mardifoufs 3y ago
  Actually, you are right. I think I either got confused with another crash or thought it was more than just the audible stall warning. And I totally agree, there's no good solution to helping the pilots in such a catastrophic situation. They were probably going to ignore audible warnings and most visual cues anyways, considering how tunnel visioned they were from the moment the auto pilot gave back the controls to the pilots.