B737 Crashes on landing in South Korea

[Jasondn78]

Another angle of the landing.

[layercake]

...looks like ground effect "float" possibly , very late belly touchdown , ... and this sad result. RIP

[Richard Smit]

I can't understand why they decided to land the way they did.

Why the rush to get it down? Why not take a bit of time and get the aircraft (and pilots) as well prepared as possible before attempting an approach and landing.

Cut out as many variables as possible while one still can.... Figure out the "what if's" and "how to's". Run the procedures in a a disciplined, unrushed manner (if there is time).

PS: I have no idea whether they were time limited in this case.

[Grog]

I think an emergency with perhaps a secondary distraction caused the pilot to omit putting gear down. Something happened apart from a bird strike to have them low and not configured for landing.

[Jasondn78]

I was thinking about this accident and I noticed heat haze missing on engine 1 in the new front on video of the landing. This got me wondering if the crew maybe shut down the wrong engine. The no. 2 engine had the compressor stall (due to possible bird ingestion), but when the plane was about to touch down, engine 1 looked like it was switched off. There is no heat haze coming from the exhaust. The crew reversed engine 2 upon touchdown, but not engine 1. Could this be the same situation as the British Midlands 737 crash at East Midlands airport?

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[Brand Wessels]

Putting the landing speed into perspective....

[Walter105]

Second Jeju Air Boeing suffers landing gear issue.

https://www.bloomberg.com/news/articles ... rns-safely

[propstrap]

Certainly more questions than answers on this one... hopefully the various flight, voice and data recorders will shed the necessary light...

It appears as if she was put down without gear, flap and no spoiler activation. The 738 is quite a robust machine, I can't imagine what forced that upon them.

According to the timeline of one BBC report (bearing in mind news reports are taken with lots of salt) it was 3 minutes from the crew calling a go around to touching the final time. That's insanely fast (if the times given are accurate, which I tend to doubt).

Edit, the video above says 7 minutes from go around to touch, which sounds more reasonable for the flight path, but as per the video, nowhere near enough time to run through the emergency. Then also, we do not know what led them to this decision, as said, hopefully the recorders will help with that.

Very sad loss of life, RIP.

https://www.bbc.com/news/articles/ckgzprprlyeo

Air traffic control authorised the plane to land at Muan International Airport at about 08:54 local time on Sunday (23:54 GMT) - just three minutes before issuing a warning about bird activity in the area.

At 08:59, the pilot reported that the plane had struck a bird, declaring "mayday mayday mayday" and "bird strike, bird strike, go-around". The pilot then aborted the original landing and requested permission to land from the opposite direction.

Air traffic control authorised the alternative landing at 09:01 - and at 09:02 the plane made contact with the ground, coming down at roughly the halfway point of the 2,800m runway.

[Paul#25]

After looking at the video and still photos that are on social media, I think that the crew forgot to extend the flaps and landing gear on this landing attempt. They had the flaps set up for landing before the bird strike and subsequent runway change, but then cleaned up the wings for the reposition to the new runway. With whatever was going on in the cockpit after the bird strike, I think the crew got so wound up in the engine problem that they didn't go through the landing procedures correctly and didn't set the flaps for landing and lower the gear. As was shown in the previous video, the gear can be manually deployed with no hydraulics available. I agree with the presenter that there are sounds that sound like a motor spooling up. The thrust reverser interlock system allows for them to be deployed when less than 3 meters from the runway. With the #2 engine thrust reverser partly deployed, if it then hit the ground it wound have most likely jammed in that position. Taking power with the reverser partly open means that they would have got forward thrust instead of slowing down.
It will be interesting to be able to see the parameters from the data recorder as well as to hear what happened in the cockpit during the approach and belly landing.
Having worked on B737-800's since they were introduced, I can't find any mechanical reason for the gear not extending after a bird strike.

[Jasondn78]

After looking at the video and still photos that are on social media, I think that the crew forgot to extend the flaps and landing gear on this landing attempt. They had the flaps set up for landing before the bird strike and subsequent runway change, but then cleaned up the wings for the reposition to the new runway. With whatever was going on in the cockpit after the bird strike, I think the crew got so wound up in the engine problem that they didn't go through the landing procedures correctly and didn't set the flaps for landing and lower the gear. As was shown in the previous video, the gear can be manually deployed with no hydraulics available. I agree with the presenter that there are sounds that sound like a motor spooling up. The thrust reverser interlock system allows for them to be deployed when less than 3 meters from the runway. With the #2 engine thrust reverser partly deployed, if it then hit the ground it wound have most likely jammed in that position. Taking power with the reverser partly open means that they would have got forward thrust instead of slowing down.
It will be interesting to be able to see the parameters from the data recorder as well as to hear what happened in the cockpit during the approach and belly landing.
Having worked on B737-800's since they were introduced, I can't find any mechanical reason for the gear not extending after a bird strike.

Is there not be a loud warning alarm sounding in the cockpit if the gear of a 737-800 is not down when the aircraft is close to the ground?

[ickk]

After looking at the video and still photos that are on social media, I think that the crew forgot to extend the flaps and landing gear on this landing attempt. They had the flaps set up for landing before the bird strike and subsequent runway change, but then cleaned up the wings for the reposition to the new runway. With whatever was going on in the cockpit after the bird strike, I think the crew got so wound up in the engine problem that they didn't go through the landing procedures correctly and didn't set the flaps for landing and lower the gear. As was shown in the previous video, the gear can be manually deployed with no hydraulics available. I agree with the presenter that there are sounds that sound like a motor spooling up. The thrust reverser interlock system allows for them to be deployed when less than 3 meters from the runway. With the #2 engine thrust reverser partly deployed, if it then hit the ground it wound have most likely jammed in that position. Taking power with the reverser partly open means that they would have got forward thrust instead of slowing down.
It will be interesting to be able to see the parameters from the data recorder as well as to hear what happened in the cockpit during the approach and belly landing.
Having worked on B737-800's since they were introduced, I can't find any mechanical reason for the gear not extending after a bird strike.

"I think the crew got so wound up in the engine problem that they didn't go through the landing procedures correctly and didn't set the flaps for landing and lower the gear." <--- Are there not very audible warnings in the cockpit to prevent this from happening?

[kudu177]

My daily workload has turned up this picture from a Korean media outlet. While bearing in mind that the telephoto perspective can be very misleading, looking at where the contact marks begin on the runway, that is a *very* deep landing.

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[SandPiper]

My take is they had the stall on the rh engine, thrustlever then at idle, shutting down the Lh engine.
Aircraft became a glider and they made it to the runway without configuring in time.

[Jasondn78]

My take is they had the stall on the rh engine, thrustlever then at idle, shutting down the Lh engine.
Aircraft became a glider and they made it to the runway without configuring in time.

Yeah, maybe leaving gear and flaps retracted to reduce drag to ensure they made it to the runway.

[MadMacs]

The aircraft was probably in flight mode hence no spoilers, i.e no landing gear to switch to ground mode and engines at flight idle?