South Korea Plane Crash - Boeing 737

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Eliminatus
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Another 737-800 makes an emergency landing and goes off runway in Norway due to hydraulics failure. Thankfully no injuries. It won't be related to SK incident I am sure but another hit to Boeing and thought I'd mention it here.




Quote:

The plane, flight KL1204, had diverted to Sandefjord Torp, located about 110 kilometers from Oslo Airport, after departing Oslo earlier. The decision to land at Torp Airport came after the aircraft experienced a malfunction in its hydraulic system, which authorities believe contributed to the incident.

According to a statement from KLM, while the emergency landing was successful, the plane lost control after touching down and went off the right side of the runway.

The airline confirmed that no injuries occurred as a result of the accident, but an investigation is now underway to determine the exact cause of the hydraulic failure


https://tribune.com.pk/story/2518903/klm-royal-dutch-flight-skids-off-runway-in-norway-no-injuries?amp=1
Ag with kids
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JFABNRGR said:

IMO there is nothing wrong with the hydraulic system. Flight radar shows their initial approach from south to North but we know they landed north to south. The berm is only on the south. So initial approach is aborted after bird strike and they don't go all the way around, instead turn tight and land to the south, landing level and on the runway which would have been damn near impossible with full loss of hydraulics.

The flight radar track is missing the last 1000' or so of data.
https://globe.adsbexchange.com/?icao=71c088

Concise info on Hydraulic system redundancy in the 737-800.
https://www.johanpercherin.info/airline-pilot-training/boeing-737-800-loss-of-hydraulic-system-b/

I think the biggest issue is they landed LONG only using about 40% of the runway. The reason they landed long is probably a bunch of things task saturation being a big one. I think the Captain had over 6000 hours, will be interesting to know his culture or adherence to CRM (crew resource management).
https://en.wikipedia.org/wiki/Crew_resource_management

I cant imagine looking out the window thinking awesome pilots got this and then poof your kneeling before God.

Not saying this is it, but...

Having watched a lot of those Aircraft Distasters shows, one of the things that came up multiple times is that in the Asian culture, there is massive deference to superiors, where the FO was afraid to speak up and correct the captain...
Rockdoc
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PA24 said:

Brewskis said:

What an odd statement…
Not really.

It's no secret airlines have rushed to fill those left seats with POC. They have replaced required thousands of man hours of flying experience with a dependence on automation of the machine. That works great until the unexpected happens like a bird strike.



Nobody wants to hear this but you are correct, not only here but in the military also, in my opinion. When things go wrong the pilot in the left seat needs to be properly prepared. Not a professional pilot but I was a private pilot years ago. Things can get away from you in a hurry, especially in a jet.
Kansas Kid
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PA24 said:

Brewskis said:

What an odd statement…
Not really.

It's no secret airlines have rushed to fill those left seats with POC. They have replaced required thousands of man hours of flying experience with a dependence on automation of the machine. That works great until the unexpected happens like a bird strike.


And yet statistical research in private aviation accidents contradict your statement. Being old and male increases the risk of accidents in GA.

"General aviation (GA) accounts for more than 82% of all air transport-related accidents and air transport-related fatalities in the U.S. In this study, we conduct a series of statistical analyses to investigate the significance of a pilot's gender, age and experience in influencing the risk for pilot errors and fatalities in GA accidents. There is no evidence from the Chi-square tests and logistic regression models that support the likelihood of an accident caused by pilot error to be related to pilot gender. However, evidence is found that male pilots, those older than 60 years of age, and with more experience, are more likely to be involved in a fatal accident."

https://www.researchgate.net/publication/50288086_Impact_of_gender_age_and_experience_of_pilots_on_general_aviation_accidents
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Kansas Kid
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Have your preferences but the facts don't back up your views.

Go back to my first comment, the only thing you really need to see to be comfortable flying is to be on a US based carriers with American pilots. The facts and data make that very clear as shown by almost 16 years without a fatal accident plane crash which is why there is no data to summarize who is safer.

There was the woman partially blown out of a plane in 2018 that died from an engine failure. Of course the incident was not pilot error and oh btw, the pilot in command was Tammie Jo Shults who landed the plane after the engine failure.

PS. When we used to have a ton of accidents in this country pre 2000, the majority of pilots were military trained and virtually all were white and male.
torrid
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PA24 said:

Kansas Kid said:

PA24 said:

Brewskis said:

What an odd statement…
Not really.

It's no secret airlines have rushed to fill those left seats with POC. They have replaced required thousands of man hours of flying experience with a dependence on automation of the machine. That works great until the unexpected happens like a bird strike.


And yet statistical research in private aviation accidents contradict your statement. Being old and male increases the risk of accidents in GA.

"General aviation (GA) accounts for more than 82% of all air transport-related accidents and air transport-related fatalities in the U.S. In this study, we conduct a series of statistical analyses to investigate the significance of a pilot's gender, age and experience in influencing the risk for pilot errors and fatalities in GA accidents. There is no evidence from the Chi-square tests and logistic regression models that support the likelihood of an accident caused by pilot error to be related to pilot gender. However, evidence is found that male pilots, those older than 60 years of age, and with more experience, are more likely to be involved in a fatal accident."

https://www.researchgate.net/publication/50288086_Impact_of_gender_age_and_experience_of_pilots_on_general_aviation_accidents
Commercial airlines have an upper age requirement.
Nothing to do with gender or race, most GA pilots are white males. Very few GA pilots become commercial pilots due to what it takes in hours of flying and the cost, at least that was before government mandates. I trained for my multi engine with a black CFI, excellent pilot but few blacks in GA. I also know some GA females that can fly circles around me but just not very many women in general aviation.

For every commercial airliner there are hundreds, maybe even thousands of GA aircraft. Of course there are more accidents in GA, many more flights. No max. age requirements either.

My preference is someone that came up thru GA with thousands of hours of flying in all kinds of conditions.

Not sure what this pilot was doing, maybe after the strike, the automation took over or he let it and the computer calculated the best land speed and configuration.


For those that do become commercial pilots, and specifically large passenger jets, what is their primary path for doing so? I presume it is the military just because of the cost involved.
MouthBQ98
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Not all flying is comparable, so they'd have to do a LIT if categorical breakdown on type, conditions, weather, flight duration, all sorts of variables and then break down each subset to work out a very large number of confounding variables and then only use the categories that might reasonably regarded as conditionally similar to commercial from the GA categories to make a reasonable comparison between the two.

For example, the accident rate of an Alaskan bush pilot isn't in any way comparable to a commercial aviation pilot.

The better comparison of pilot quality by categories is probably commercial in different nations or regions and then examining variations based on the relatively fewer confounding variables in that category.
Logos Stick
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Kansas Kid said:

PA24 said:

American males, older white males make up the best airline pilots, a plus if non military. But that is just my opinion.

General aviation in the USA teaches young teenage pilots how to fly an airplane. By the time they are 20 years old, they are tested by experience.

On the other hand, few countries have general aviation and those that do are restricted by limited airspace, resources, and training planes. In the USA, there are thousands of air fields and most American white males learned to fly in a Cessna 150 or172 sitting beside an old CFI that put them thru a wringer. Each rating was harder than the last and they will fly anywhere, anytime to get those hours.

Next time you board a commercial plane, look into the cockpit and if you see a fat, balding old white guy with a wrinkle shirt. Sleep tight, you are in good hands.



Being old, white and male isn't the issue. It is being an American pilot.



Non sequitur. 95% of commercial pilots in the US ARE white males. And the reason they are white males is not because of racism or sexism.
TexasAggie_02
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Kansas Kid said:

PA24 said:

Brewskis said:

What an odd statement…
Not really.

It's no secret airlines have rushed to fill those left seats with POC. They have replaced required thousands of man hours of flying experience with a dependence on automation of the machine. That works great until the unexpected happens like a bird strike.


And yet statistical research in private aviation accidents contradict your statement. Being old and male increases the risk of accidents in GA.

"General aviation (GA) accounts for more than 82% of all air transport-related accidents and air transport-related fatalities in the U.S. In this study, we conduct a series of statistical analyses to investigate the significance of a pilot's gender, age and experience in influencing the risk for pilot errors and fatalities in GA accidents. There is no evidence from the Chi-square tests and logistic regression models that support the likelihood of an accident caused by pilot error to be related to pilot gender. However, evidence is found that male pilots, those older than 60 years of age, and with more experience, are more likely to be involved in a fatal accident."

https://www.researchgate.net/publication/50288086_Impact_of_gender_age_and_experience_of_pilots_on_general_aviation_accidents


So, the largest demographic with the most flight hours has the most accidents?

You don't say?
Logos Stick
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TexasAggie_02 said:

Kansas Kid said:

PA24 said:

Brewskis said:

What an odd statement…
Not really.

It's no secret airlines have rushed to fill those left seats with POC. They have replaced required thousands of man hours of flying experience with a dependence on automation of the machine. That works great until the unexpected happens like a bird strike.


And yet statistical research in private aviation accidents contradict your statement. Being old and male increases the risk of accidents in GA.

"General aviation (GA) accounts for more than 82% of all air transport-related accidents and air transport-related fatalities in the U.S. In this study, we conduct a series of statistical analyses to investigate the significance of a pilot's gender, age and experience in influencing the risk for pilot errors and fatalities in GA accidents. There is no evidence from the Chi-square tests and logistic regression models that support the likelihood of an accident caused by pilot error to be related to pilot gender. However, evidence is found that male pilots, those older than 60 years of age, and with more experience, are more likely to be involved in a fatal accident."

https://www.researchgate.net/publication/50288086_Impact_of_gender_age_and_experience_of_pilots_on_general_aviation_accidents


So, the largest demographic with the most flight hours has the most accidents?

You don't say?



To be fair, he would have used per capita but there are no old females that fly.
Kansas Kid
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The study adjusts for those factors and is done on a per capital per flight hour basis. Please show me any data that disputes these findings or that old, white males are safer airlines pilots?

Let me be clear, I hate DEI policies and only the best person available for the job should ever be hired. There are a number of examples where DEI policies have caused major problems but it isn't in commercial aviation pilots.

The arguments being made here are like the ones made about women drivers being worse than men when the data doesn't show that argument to be valid. The real data shows that in current times, men and women are statistically similar.
Logos Stick
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LoL, I'm not surprised you believe that nonsense.
nortex97
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Ag with kids said:

JFABNRGR said:

IMO there is nothing wrong with the hydraulic system. Flight radar shows their initial approach from south to North but we know they landed north to south. The berm is only on the south. So initial approach is aborted after bird strike and they don't go all the way around, instead turn tight and land to the south, landing level and on the runway which would have been damn near impossible with full loss of hydraulics.

The flight radar track is missing the last 1000' or so of data.
https://globe.adsbexchange.com/?icao=71c088

Concise info on Hydraulic system redundancy in the 737-800.
https://www.johanpercherin.info/airline-pilot-training/boeing-737-800-loss-of-hydraulic-system-b/

I think the biggest issue is they landed LONG only using about 40% of the runway. The reason they landed long is probably a bunch of things task saturation being a big one. I think the Captain had over 6000 hours, will be interesting to know his culture or adherence to CRM (crew resource management).
https://en.wikipedia.org/wiki/Crew_resource_management

I cant imagine looking out the window thinking awesome pilots got this and then poof your kneeling before God.

Not saying this is it, but...

Having watched a lot of those Aircraft Distasters shows, one of the things that came up multiple times is that in the Asian culture, there is massive deference to superiors, where the FO was afraid to speak up and correct the captain...
Yes it's been a problem specifically cited I think in the big Asiana 777 crash/landing short of the runway a decade or so back in SFO. They had a terrible safety record at that point, to my recollection, and in fact for some bizarre reasons I don't really get I think most Korean airlines seem to lag overall in safety ratings.
fire09
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Used to be primarily ex military, now has switched to a decent mix of ATP school (trade school for pilots), private-cfi/commercial-regional route, and ex military. Recently airlines began building their own schools and certification programs, as well as sponsoring candidates through existing ATP schools. This is where you are seeing the big "diversity" push is through these sponsorships. Requirements are the same for any candidate to fly a jet. There is a shortage of qualified pilots.

My personal concern would be with regard to pencil whipping candidates through subjective checkrides or not washing them out when they fail repeatedly, due to their demographic and the need to graduate certain ratios. This is happening right now in these sponsored programs, and these people who are bad pilots are one emergency situation away from a tragedy. Luckily safe aircraft and technology around modern airframes are allowing this to go unnoticed.
Jock 07
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nortex97 said:

Ag with kids said:

JFABNRGR said:

IMO there is nothing wrong with the hydraulic system. Flight radar shows their initial approach from south to North but we know they landed north to south. The berm is only on the south. So initial approach is aborted after bird strike and they don't go all the way around, instead turn tight and land to the south, landing level and on the runway which would have been damn near impossible with full loss of hydraulics.

The flight radar track is missing the last 1000' or so of data.
https://globe.adsbexchange.com/?icao=71c088

Concise info on Hydraulic system redundancy in the 737-800.
https://www.johanpercherin.info/airline-pilot-training/boeing-737-800-loss-of-hydraulic-system-b/

I think the biggest issue is they landed LONG only using about 40% of the runway. The reason they landed long is probably a bunch of things task saturation being a big one. I think the Captain had over 6000 hours, will be interesting to know his culture or adherence to CRM (crew resource management).
https://en.wikipedia.org/wiki/Crew_resource_management

I cant imagine looking out the window thinking awesome pilots got this and then poof your kneeling before God.

Not saying this is it, but...

Having watched a lot of those Aircraft Distasters shows, one of the things that came up multiple times is that in the Asian culture, there is massive deference to superiors, where the FO was afraid to speak up and correct the captain...
Yes it's been a problem specifically cited I think in the big Asiana 777 crash/landing short of the runway a decade or so back in SFO. They had a terrible safety record at that point, to my recollection, and in fact for some bizarre reasons I don't really get I think most Korean airlines seem to lag overall in safety ratings.
was that sum ting wong, wi tu lo, or ho Lee ***?
JFABNRGR
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Lets get back to the crash and away from DEI. The pilot had over 6000 hours, thats pre DEI level of experience.
“You can resolve to live your life with integrity. Let your credo be this: Let the lie come into the world, let it even triumph. But not through me.”
- Alexander Solzhenitsyn
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JFABNRGR
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PA24 said:

JFABNRGR said:

Let's get back to the crash and away from DEI. The pilot had over 6000 hours, thats pre DEI level of experience.
Wondering how many of those hours were without autopilot?


IDK but thats a better question over gender, color, etc.
“You can resolve to live your life with integrity. Let your credo be this: Let the lie come into the world, let it even triumph. But not through me.”
- Alexander Solzhenitsyn
rackmonster
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Just something to point out about Slat/Flap Deployment and Retraction. (. Background...35 years Airline Pilot..flew every Boeing except 787, DC-10, no Airbus).
Deployment and Retraction are normally hydraulic. The back-up are electric motors. The electronic backup takes a lot longer than hydraulic. So if you need to do this, you're going to follow a rather long procedure involving switches that you don't normally use, so it's vitally important to verify that you are pressing the correct switch with the guy beside you. I had to do this 3 times in a 767 coming into London Heathrow. I declared an emergency, had them vector me away from the normal approach/landing corridors, and I took my good old time getting set up. (this is a good reason to save every drop of fuel you have when you're at altitude. When you get rushed, you tend to miss stuff). Once I was set up, and myself and my crew were comfortable, I told Heathrow I was ready. Because I'm an Emergency AC, they get everybody out of my way.
As far as Flap Extension, here's what's important to understand. Normal Landing Flaps are 30 (or 25 if you have crosswinds). If you extend flaps electrically, they will not extend beyond 20. (hence a higher approach speed). Why won't they go any further than 20 with the electric motors? Simple. Go-Around Capability. You can go-around safely with Flaps 20. At flaps 25 or 30 it would take too long to retract the Flaps to a safe Go-Around position with the electric motors.
Not sure what this crew was dealing with, but all I can say is I'm glad I'm retired.
GAC06
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Landing flaps are 40,30,15 for the 737, 15 for alternate extension but all valid points
Rapier108
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Staff, can we get a clean up of the derail on this thread?

This thread is not about DEI or whether white men are naturally better pilots.
"If you will not fight for right when you can easily win without blood shed; if you will not fight when your victory is sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves." - Sir Winston Churchill
fc2112
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rackmonster said:

Just something to point out about Slat/Flap Deployment and Retraction. (. Background...35 years Airline Pilot..flew every Boeing except 787, DC-10, no Airbus).
Deployment and Retraction are normally hydraulic. The back-up are electric motors. The electronic backup takes a lot longer than hydraulic. So if you need to do this, you're going to follow a rather long procedure involving switches that you don't normally use, so it's vitally important to verify that you are pressing the correct switch with the guy beside you. I had to do this 3 times in a 767 coming into London Heathrow. I declared an emergency, had them vector me away from the normal approach/landing corridors, and I took my good old time getting set up. (this is a good reason to save every drop of fuel you have when you're at altitude. When you get rushed, you tend to miss stuff). Once I was set up, and myself and my crew were comfortable, I told Heathrow I was ready. Because I'm an Emergency AC, they get everybody out of my way.
As far as Flap Extension, here's what's important to understand. Normal Landing Flaps are 30 (or 25 if you have crosswinds). If you extend flaps electrically, they will not extend beyond 20. (hence a higher approach speed). Why won't they go any further than 20 with the electric motors? Simple. Go-Around Capability. You can go-around safely with Flaps 20. At flaps 25 or 30 it would take too long to retract the Flaps to a safe Go-Around position with the electric motors.
Not sure what this crew was dealing with, but all I can say is I'm glad I'm retired.

Great read. Thank you.
fire09
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Based on the information we have so far, this will likely be attributed to a failure of the crew. While I agree the focal point of the discussion should not be solely on DEI and other culturally induced practices in the cockpit, to ignore them would be would be missing a relevant piece of the story. Again, assuming this is attributed to crew error.

Another relevant discussion point is simulator training vs flight deck experience and their ratios. Total flight hours in my opinion are less relevant with our current equipment and training practices than someone who has experienced issues outside of a simulator. GA/Military generally have a laundry list of horror stories due to training on 50 year old equipment that's been beat to ***** A list of issues off the top of my head I've dealt with in the air: failed transponder/radio, HSI/vacuum, carb ice, ice boot failure, rpm loss, magneto failure, failed generator. I'm not unique, most guys will run into all of these at some point and many have way longer lists. Dealing with an inflight failure is a lot different than simulating it. Point being, US pilots have the most impactful stick time and the safety records show it.
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Aggie_Boomin 21
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Kansas Kid said:

The study adjusts for those factors and is done on a per capital per flight hour basis. Please show me any data that disputes these findings or that old, white males are safer airlines pilots?

Let me be clear, I hate DEI policies and only the best person available for the job should ever be hired. There are a number of examples where DEI policies have caused major problems but it isn't in commercial aviation pilots.

The arguments being made here are like the ones made about women drivers being worse than men when the data doesn't show that argument to be valid. The real data shows that in current times, men and women are statistically similar.

How do you know it controls for per flight hour? The full analysis isn't available in that link.
Pumpkinhead
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Some info and speculation starting to come out now may have been a bird strike caused situation? Apparently a passenger texted about birds hitting the plane, as well as a bird warning issued by control tower, moments before crash?
GAC06
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A bird strike could have been a contributing factor but it sure shouldn't have led to landing gear up.
BadMoonRisin
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report from SK Media saying a passenger on board texted a family member who was waiting for them at the airport that the plane cannot land due to a bird being caught in the wing.

"We can't land because a bird got caught on our wing."

Im sure there is some lost in translation. Their last text was asking if they should make a will.

https://www.news1.kr/local/gwangju-jeonnam/5645317

Keep in mind, the fog of war and that this media that is trying to explain what happened.

737s have a manual gear drop that should have allowed them to gravity drop in case of lost hydraulic functions.



I think this one is going to be pilot panic/error. There is nothing that would have prevented them from dropping the landing gear.

On the other aviation thread, they said that there was actually a go around before attempting another landing, but the flightaware data stopped reporting several hundred meters before the runway, so Im curious to see if that is actually true.
Rapier108
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fire09 said:

Based on the information we have so far, this will likely be attributed to a failure of the crew. While I agree the focal point of the discussion should not be solely on DEI and other culturally induced practices in the cockpit, to ignore them would be would be missing a relevant piece of the story. Again, assuming this is attributed to crew error.

Another relevant discussion point is simulator training vs flight deck experience and their ratios. Total flight hours in my opinion are less relevant with our current equipment and training practices than someone who has experienced issues outside of a simulator. GA/Military generally have a laundry list of horror stories due to training on 50 year old equipment that's been beat to ***** A list of issues off the top of my head I've dealt with in the air: failed transponder/radio, HSI/vacuum, carb ice, ice boot failure, rpm loss, magneto failure, failed generator. I'm not unique, most guys will run into all of these at some point and many have way longer lists. Dealing with an inflight failure is a lot different than simulating it. Point being, US pilots have the most impactful stick time and the safety records show it.

This was a Korean airline. DEI is not a thing in Korean culture.

Plenty of white male pilots have ****ed up and crashed passenger aircraft.

PA24 took this thread off topic for no other reason than anytime a plane crashes, someone just has to start going off with "muh DEI".
"If you will not fight for right when you can easily win without blood shed; if you will not fight when your victory is sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves." - Sir Winston Churchill
Rockdoc
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Now who's derailing?
BadMoonRisin
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I think this is what probably happened. In an emergency situation, how can you forget the gear-down?

If they were certain that their landing gear wouldnt work, you have to set it down sooner to give yourself the most runway and friction to stop the aircraft. If you thought the gear was down, you would behave exactly as the pilot did in this situation.

The cockpit was probably screaming "TOO LOW. GEAR" and "TOO LOW, FLAPS", the entire time.

Strange, for sure. Tragic as well.
GAC06
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They should have had the gear horn blaring and the ground prox yelling at them "too low gear". Hard to imagine being so fixated as to miss that
 
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