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The button did not fail. Once your wheels are on the ground advancing the throttle is dangerous and requires manual throttle entry. so that is what the system d

by somat 4y ago

The button did not fail. Once your wheels are on the ground advancing the throttle is dangerous and requires manual throttle entry. so that is what the system did. Take-off/go-around is a complicated maneuver involving quite a few tasks that need to be orchestrated to preform it correctly, in short you need to quickly transition the aircraft from it's landing configuration to it's take-off configuration. an ideal situation for automation. However according to the article. "However, the TOGA switches are inhibited on landing after touchdown, because if a pilot were to accidentally press it during rollout, it could cause the plane to run off the runway. The autothrottle system remains active, but if sensors detect that there is weight on the wheels, the TOGA switches simply won’t do anything."

unsafecast 4y ago
The button failed. If one of its core functions can't be carried out because of the circumstances, that's fine. But it's the system's responsibility to announce this very clearly, because if a button that usually makes you go fast suddenly doesn't, you want to know.
tuetuopay 4y ago
You missed the point. The core issue is not the button being inhibited, but being silently inhibited. The pilots were not aware that power did not increase when they expected it to do so. Just show a bright red warning or a voice alert when the inhibition activates.
- somat 4y ago
  But there is an indicator, there is this huge lever that takes up most of the space in the center console. when the thrust is increased by the auto throttle the lever moves forward, With no critique to the pilots, they were in the edgeist of edge conditions, things were happening very fast, the airplane had more lift than it should have, and they acted with all due credit to the profession during the incident. So we look to find what could have been done differently, There are many small things that perhaps could have prevented this, basicly this is the article. But one of those things was to notice that the huge lever in the center console was not moving. and their hand was right there to pull the togo switches.

by somat 4y ago

unsafecast 4y ago

The button failed. If one of its core functions can't be carried out because of the circumstances, that's fine. But it's the system's responsibility to announce this very clearly, because if a button that usually makes you go fast suddenly doesn't, you want to know.

tuetuopay 4y ago

You missed the point. The core issue is not the button being inhibited, but being silently inhibited. The pilots were not aware that power did not increase when they expected it to do so. Just show a bright red warning or a voice alert when the inhibition activates.

somat 4y ago
But there is an indicator, there is this huge lever that takes up most of the space in the center console. when the thrust is increased by the auto throttle the lever moves forward, With no critique to the pilots, they were in the edgeist of edge conditions, things were happening very fast, the airplane had more lift than it should have, and they acted with all due credit to the profession during the incident. So we look to find what could have been done differently, There are many small things that perhaps could have prevented this, basicly this is the article. But one of those things was to notice that the huge lever in the center console was not moving. and their hand was right there to pull the togo switches.