Originally Posted by
dClbydalpha
In this case once the initial mental picture of the scenario was created, all that additional SA just provided confirmation. What was required was something to look wrong. EGPWS could have done that, with a significantly red blob of terrain. NVDs could also have done that with a looming piece of land.
They had FLIR and the pilots were told of the obstacle ahead 15 seconds before impact. If the EGPWS had painted a red blob in-front of them, would they have reacted any differently from basically being told by the radar operator there is a red blob ahead? If the FLIR didn't look wrong enough, and the radar didn't look wrong enough, would a little blob of red on the EGPWS and an aural terrain warning have triggered immediate avoiding action?