this post was submitted on 29 Dec 2024
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[–] [email protected] 18 points 3 weeks ago (1 children)

Even with a landing gear failure nothing else made sense: landing 2/3rds way up runway, no flaps, excess speed etc

[–] [email protected] 2 points 3 weeks ago (2 children)

Complete loss of power due to strikes on all engines. The ram air turbine is not enough to move all those parts.

[–] [email protected] 11 points 3 weeks ago (1 children)

Boeing 737 allows for gravity drop of landing gear which would work even with total power loss

https://aviation.stackexchange.com/questions/79782/can-the-landing-gear-be-lowered-when-system-a-hydraulic-pressure-is-lost-in-boei

Ram air turbine is sufficient for control surfaces, which is what it's designed for

[–] SapphironZA 2 points 3 weeks ago (1 children)

Having one thrust reverser deployed on the side of the bird strike was super weird. Both thrust reversers can be controlled by the APU hydraulic system

[–] deranger 3 points 3 weeks ago (2 children)

The APU doesn’t have a hydraulic system. There are three redundant electric pumps however, and these can run off the battery. Regardless, I don’t believe there was any issue with the hydraulics as the plane was well controlled on the final approach.

[–] SapphironZA 3 points 3 weeks ago

I see what you mean. It's not directly connected I see. Only indirectly via electrical pump as you pointed out.

It is curious that no flaps or spoilers were deployed. Maybe the control was not as great as it appeared. The plane did touch down a long way down the runway.

[–] [email protected] 3 points 3 weeks ago

It just gets weirder doesn't it

[–] deranger 4 points 3 weeks ago* (last edited 3 weeks ago)

There’s no ram air turbine on a 737.

[–] interurbain1er 9 points 3 weeks ago* (last edited 3 weeks ago)

It should be obvious that we don't know exactly why a plane crashed barely a day ago.

Investigating takes time and since the pilots are dead they'll have to reconstruct the situation from the wreakage, flight data recorders and whatever other information they can piece together.

Expect a few weeks before getting a rough theory and a year or two for a final report after it's done bouncing between all the various authorities who will want to be involved and the manufacturers.

[–] [email protected] 1 points 3 weeks ago

It doesn't matter what caused the plane to crash. The deaths are the fault if the airport and its concrete ILS antennas