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The lack of contact of the left wheels on the ground, which the Weight of Wheel sensor deployment depends on, as in both wheels being grounded, which the auto-s

The lack of contact of the left wheels on the ground, which the Weight of Wheel sensor deployment depends on, as in both wheels being grounded, which the auto-speed brakes/thrust reversers depend on, worsened the whole situation as the crew seems to be unaware why they weren't losing speed after they'd 'landed'. Every single thing they could do wrong at, they did.

bronson 6d ago
After applying the brakes for 8 seconds, they then went to full throttle to try get back in the air for four more seconds. That's bonkers.
Polizeiposaune 6d ago
> Every single thing they could do wrong at, they did. There are just too many ways to screw up for that ever to be the case. For instance, they could also have been lined up to land on something other than the runway they were cleared to land on -- see Air Canada Flight 759, https://en.wikipedia.org/wiki/Air_Canada_Flight_759 https://en.wikipedia.org/wiki/Air_Canada_Flight_759, which came within 14 feet of colliding with an aircraft on the taxiway they mistook for the runway..
mrguyorama 5d ago
I would expect, that if they tried to deploy thrust reversers, that event would have been included in this summary. If such an assumption is safe, then the implication is that they didn't even try to deploy reverse thrust which is insane. Similarly, it isn't specified anywhere, but it took TEN FULL SECONDS of contact with the runway between first wheel down and last wheel down. Why didn't spoilers deploy and bring down the third wheel way faster than that? Do spoilers require all three wheels already down? Why, this is exactly what they are for! There was also 7 seconds between first wheel touchdown and first application of brakes. That would seem to mean they were confused and autobrakes didn't function, but then the third wheel comes down, which should have let autobrakes and thrust reversers deploy, yet the aircraft only lost 14 knots in the 4 seconds between that event and the throttles being moved to go around. That is consistent with only the existing braking effort, which expended a similar speed in the previous 4 seconds. Brake performance may have been reduced by a slick runway maybe. 15 full seconds between first wheel touchdown and an actual decision to go around being executed. 3000 feet is a rather significant portion of any runway.

bronson 6d ago

After applying the brakes for 8 seconds, they then went to full throttle to try get back in the air for four more seconds. That's bonkers.

Polizeiposaune 6d ago

> Every single thing they could do wrong at, they did. There are just too many ways to screw up for that ever to be the case. For instance, they could also have been lined up to land on something other than the runway they were cleared to land on -- see Air Canada Flight 759, https://en.wikipedia.org/wiki/Air_Canada_Flight_759 https://en.wikipedia.org/wiki/Air_Canada_Flight_759, which came within 14 feet of colliding with an aircraft on the taxiway they mistook for the runway..

mrguyorama 5d ago

I would expect, that if they tried to deploy thrust reversers, that event would have been included in this summary. If such an assumption is safe, then the implication is that they didn't even try to deploy reverse thrust which is insane. Similarly, it isn't specified anywhere, but it took TEN FULL SECONDS of contact with the runway between first wheel down and last wheel down. Why didn't spoilers deploy and bring down the third wheel way faster than that? Do spoilers require all three wheels already down? Why, this is exactly what they are for! There was also 7 seconds between first wheel touchdown and first application of brakes. That would seem to mean they were confused and autobrakes didn't function, but then the third wheel comes down, which should have let autobrakes and thrust reversers deploy, yet the aircraft only lost 14 knots in the 4 seconds between that event and the throttles being moved to go around. That is consistent with only the existing braking effort, which expended a similar speed in the previous 4 seconds. Brake performance may have been reduced by a slick runway maybe. 15 full seconds between first wheel touchdown and an actual decision to go around being executed. 3000 feet is a rather significant portion of any runway.