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toomuchtodo · 8 months ago

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cyberlimerence · 8 months ago
Tragically it appears that out of 181 onboard only two have survived. If true, this would be South Korea’s worst domestic civil aviation disaster. [1][2]

[1] https://en.yna.co.kr/view/AEN20241229001054315 [2] https://www.theguardian.com/world/live/2024/dec/29/south-kor...

shepherdjerred · 8 months ago
After watching the video it’s amazing that anyone survived
cyberlimerence · 8 months ago
Apparently two survivors are the crew members who were at the tail section. Even if (big if) their physical injuries are not critical, they are likely permanently psychologically scarred. I somehow doubt you can continue working in an airline after that.
nicce · 8 months ago
Would it be reasonable to increase the length of the runway (or longer non-blocking area) based on these incidents, even if they are extremely rare.
ajb · 8 months ago
Discussion on prune (professional pilots rumour network): https://www.pprune.org/accidents-close-calls/663324-jeju-737...
nextworddev · 8 months ago
Interesting that everyone in the prune thread thinks bird strike is not the likely cause, but something else
anshumankmr · 8 months ago
IANAP but from what I know a plane can theoretically fly on one engine.
golly_ned · 8 months ago
The article itself says the landing gear wasn't deployed.

> Yonhap reported that the landing gear of the Boeing Co. 737-800 jet malfunctioned, causing it to land on its belly without its wheels deployed. It then hit a wall at the end of the runway.

From all the speculation about birds I'm guessing the article was updated with this after many of these comments.

madaxe_again · 8 months ago
Doesn’t seem to be unanimous - reading through, one working hypothesis is that the pilots were incapacitated or killed by bird strike - not impossible - and someone else was attempting landing.
diggan · 8 months ago
"Top Answer" as of right now seems to say they were trying to go around but failed and tried to get out again, but "probably" with one engine because of "bird ingestion".
denysvitali · 8 months ago
The article doesn't mention it, but there are videos [1] on the internet where the landing gear is clearly missing / not open. Some sources report that the landing gear broke because of an impact with some birds.

[1]: https://x.com/BNONews/status/1873174704720425440

paxys · 8 months ago
> landing gear broke because of an impact with some birds.

That seems...improbable.

lifthrasiir · 8 months ago
That seems to be lost in translation. In my understanding of breaking news, some engine (not a landing gear) was broken due to the bird strike so the plane went around but landed without landing gears down.
weaksauce · 8 months ago
it is quite improbable. they can deploy landing gears using gravity so unless the birds killed that system(they can't) it was probably pilot error. just like in pakistan in 2020 that destroyed the engines so they couldn't perform the go around and they crashed.
denysvitali · 8 months ago
Yep, same thought - although I'm not an aviation expert. Some people think the pilot "forgot" to deploy the landing gear - which seems very unrealistic too.

I guess it's best to wait for an official investigation

hindsightbias · 8 months ago
Looking at google maps it’s not really clear why having a wall at the end of your runway is necessary.

But 9100’ isn’t super short.

Mountain_Skies · 8 months ago
Two possibilities come to mind. The first is that it's South Korea so airports are military assets that need to be secure. The other is that it's meant to protect the road and hotel south of the end of the runway from aircraft overshooting the end but that was intended for much lower speed collisions.
kumarvvr · 8 months ago
Looks like back and front landing gear are not deployed. Highly unlikely for that to happen due to a bird hit.
fransje26 · 8 months ago
Agreed. Landing gears can be gravity-operated when hydraulics are out.

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jarsin · 8 months ago
People survived that? Looks like a giant ball of fire engulphed the entire plane as it smacked into a wall going 100+ mph.
cjbprime · 8 months ago
Two people survived it (or at least, they have survived it so far) by being at the tail of the plane as it separated on impact and avoided the fireball, I imagine.
1659447091 · 8 months ago
The AP article[0] list the survivors as crew members(flight attendants). By looking at the main pic in the article with only the tail section as looking anything like it was once a plane, I am guessing they were saved from the brunt of it by the back galley wall

> "Emergency workers pulled out two people, both crew members, to safety, and local health officials said they remain conscious."

[0] https://apnews.com/article/south-korea-plane-fire-68da9b0bd5...

whimsicalism · 8 months ago
nypost article i saw said two people confirmed alive
supernova87a · 8 months ago
In this video of the plane going along the runway, it just seems to me it's going very fast well into a no-gear landing. Like they didn't set it down for more than half the runway (and the runway was 9200 feet)

https://x.com/BNONews/status/1873174704720425440

https://en.wikipedia.org/wiki/Muan_International_Airport

The thrust reversers are open though? (maybe?)

cjbprime · 8 months ago
They probably started trying to go-around (accelerating) the moment they realized they'd landed half way down the runway with the gear up.
lawgimenez · 8 months ago
> The plane appears to have hit a concrete wall, according to the photos.

Can anybody point out why there is a concrete wall at the end of the runway?

buildsjets · 8 months ago
There isn’t one. There is a dip, and then a marshy area, and then there is a soil berm that supports the runway lighting system which is at the same height as the runway surface.

https://media.discordapp.net/attachments/1108904845802471515...

I’d like to know if his runway had an EMAS system, and if EMAS is effective against an aircraft without the landing gear down. In satellite photos, both ends of the runway are marked with yellow chevrons, which indicates that the surface is not supposed to be taxiied on, and it has a blocky/pixelated coloring which is typical of EMAS but I cant find an airport facility directory that covers MXW.

https://en.wikipedia.org/wiki/Engineered_materials_arrestor_...

ranger207 · 8 months ago
FYI the Discord image link will expire after a few hours. If you could link the original source or reupload the image onto another image host such as Imgur, that'd be nice for people reading the thread later
Animats · 8 months ago
Runway info: [1]. No mention of EMAS. There are chevrons at each end, but EMAS markings are not yet standardized internationally, which ops.group complains about.

At that speed, with gear up, and possibly still under power, EMAS might not help much. Unclear from the video.

Expect more solid info tomorrow.

[1] http://aim.koca.go.kr/eaipPub/Package/2015-01-07-AIRAC/html/...

whycome · 8 months ago
All media seems to say that it is indeed made of concrete. Perhaps covered in soil?
denysvitali · 8 months ago
By looking at the streetview image [1], and assuming this is the correct concrete wall they hit, my best guess is that this is just the "fencing" around the airport. Letting an airplane run past the wall would have meant allowing an airplane to cross a few streets past the end of the runway.

It would be nice to know what are the regulations around this topic though, having a concrete wall at the end of a runway can definitely be fatal (as we've seen here)

[1]: https://maps.app.goo.gl/yFx9u1AE1kZhM9iW8

do_not_redeem · 8 months ago
It looks like a trolley problem to me sadly. If that wall wasn't there, the plane would have kept skidding (from the looks of that picture) downhill into traffic for who knows how long. Planes have a lot of inertia. And those look like power lines just past that wall too; those would not help the situation either.
buildsjets · 8 months ago
Here’s a better streetview link. You can see the dirt berm that the aircraft hit is located far inside the perimeter wall. Also the wall is pretty dang thin and would not have stopped a 737 like that.

https://maps.app.goo.gl/NHh9eDtAGGtZY9fH7

drtgh · 8 months ago
If the video we all are seeing is from this accident, then it is not the fencing around the airport. It is some kind of mound, apparently hardened earth with antennas from the instrument landing system on it ( the fence seems to be further back ).
SteveNuts · 8 months ago
Seems like a matter of “fatal for the airplane passengers” vs. “fatal for the airplane passengers plus motorists”
neom · 8 months ago
I was curious so I went and looked at what other airports do, yyz, jfk, icn, lhr are all chainlink, some areas of yyz if you over-ran and went through he chainlink, it looks like surely you'd be on a road considerably bigger than the one at Muan.
hipadev23 · 8 months ago
Because it's the start of the runway, not the end.
paxys · 8 months ago
Better for planes to hit a concrete wall than take out a neighborhood downstream from the runway.
blitzar · 8 months ago
Unfotunately the neighbourhood downstream from the runway is a field followed closely by a body of water.
tedd4u · 8 months ago
Birdstrike #2 engine possibly captured on video:

https://x.com/Global_Mil_Info/status/1873181671375421703

buildsjets · 8 months ago
Bird concentration chart for the airport, as published by the Korea Office of Civil Aviation. Really not sure what they would expect a pilot do with this information. Also not really sure how they convince the birds to stay in the marked areas.

http://aim.koca.go.kr/eaipPub/Package/2022-06-30/pdf/AD/RKJB...

kylehotchkiss · 8 months ago
I like Delhi's solution. They shoot cannons (unclear what's in them) all day to keep the birds away from the runway. This is probably super common, I just haven't seen it done elsewhere.
verdverm · 8 months ago
Quite a bit of links, information, and speculation on r/aviation

https://www.reddit.com/r/aviation/comments/1holbp4/jeju_air_...

dredmorbius · 8 months ago
RheingoldRiver · 8 months ago
If you want to always use old.reddit and not have to rely on being logged in: https://addons.mozilla.org/en-US/firefox/addon/redirector/
loeg · 8 months ago
Some guy's notes from that thread (fft82): https://docs.google.com/document/d/1IYwcfDV2gQ4KW7zfi_sAiowu...

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