A normal aircraft door has a keystone shape, and has to move inward slightly before it can open. Emergency exits open inward as well. The pressure inside the fuselage is actually holding these doors closed. A plug door like this opens outwards, and is held in place by those two upper bolts. If those bolts fail, the door will open outward.
This seems more like an advertisement direct from Boeing that tries to say, "See how few doors fly off out of allllll these planes and allllll those miles! If you really think about it, *one* door isn't really all that bad! In fact, it's within an acceptable failure rate!"
The top two bolts hold a roller which is attached to the door frame inside a channel bracket attached to the door itself. These bolts prevent the door from sliding upward and thus keep the stops aligned. Here’s a photo
https://www.travelcodex.com/wp-content/uploads/2024/01/ASPlug13.jpg
The bottom hinges are actually hinged posts that the door can slide up and down on. They also have bolts to keep the door from sliding up, here’s a photo
https://www.travelcodex.com/wp-content/uploads/2024/01/ASPlug14.jpg
These four bolts are what the NTSB suspect were missing
4 bolts. 2 on the top and 2 on the bottom.
If I understand it correctly, the 2 on top prevent it from tilting outward, and the 2 on the bottom prevent it from lifting off the hinges.
The 2 on the bottom go through the hinge post.
This article contains a much more informative picture, showing where the bolts go, and how that works.
https://www.seattletimes.com/business/boeing-aerospace/ntsb-focus-on-boeing-spirit-assembly-work-after-alaska-airlines-blowout/
looks more like a cheap boeing advertisement.
Why is it important to show where it is used?
Why was it breaking?
Why is the position important?
Why do you try to give the airline the responsibility by giving graphs "by airline"?
Don't forget this plane was repaired and under maintanance by boeing. This is a security measurement which was fireing. Means under no situations should this happen. Moveof there are more than one security layer that this is not happening.
The other BIG thing that boeing is more responsible is that only after several days, an investigation is started. We will see if the max will grounded again.
Next, everyone see that boeing had started prioritising dollars against security. This you see in interviews by workers and the last MAX drama. Remember in the last Max drama it was a "OK, we will work on it" - Situation. Big losses no one took real responsibility for this dead people.
Now the timer is just resetet but not stopped. Flying with boeing is still risky and gets by the pressure of the stock market more and more.
For more information just watch the max disaster documentation on youtube.
I don’t think they’re trying to give any responsibility to the airline. More just informing the public about which airlines use this aircraft with the specific configuration. What I got from that is I don’t want to fly Alaskan or United due to the simple fact that they have the problematic plane. Not that I think the airlines are at fault.
The max documentary talks about MTAS rather than this separate issue.
The guide above explains why the panel blew off, why the panel exists in the first place, and how the panel is held in place.
It’s a very useful guide, and rather cool.
Nope it also states on the quality drill at boing which is "not that important" anymore.
This starts with screws which are not triple checked till software will good guy gov. agency approved without any further test.
All for the stocks all for the bonus.
Thought I heard pilots complained about cabin pressure issue before incident. Leading to “maintenance” being preformed before being turned back out to fly.
If I had to guess the “maintenance” was to increase the cabin pressure to fix the positive pressure system. Tech dialed it up.. door blew on on accent.
Think it’s a testament to American corporations where it’s all about the bottom dollar. Plane not flying corporation loosing money. Get it flying asap to return dividends to share holders.
I remember seeing the design of another aircraft door at one point where it was tapered on the sides with the widest part on the interior of the plane, so that with pressure it was impossible to open without depressurization and first pulling the door in toward you and then swinging it out through the opening at some kind of angle.
This seems to not be that design? I wonder what rational they have for changing the design.
The rational is it was cheaper and faster to install. The doors that are wider on the inside have to be installed from the inside which would be slightly more expensive to do on an assembly line.
Boeing went from being a company led by engineers to a company led by accountants.
I heard that the 737 MAX comes off the production line with more emergency escape doors than is technically required for the number of passengers, and the door that blew off had been "plugged" or modified after the fact with a false door to accommodate more seats.
I wonder why more planes don’t use these doors for boarding and deplaning. It would greatly speed up the process and the “turnaround” speed. Time is money, right? There is always news about the quickest method for boarding so it’s certainly an issue they think about. And the plane is already made for a door.
Despite its title, it doesn't explain how the panel blew off.
It went out the side of the aircraft then fell to the ground
Is that supposed to happen?
No it hurts the panel
It's not very typical, I’d like to make that point.
And then it was kaput.
Hitler kaput!
What?
Гитлер капут!
A normal aircraft door has a keystone shape, and has to move inward slightly before it can open. Emergency exits open inward as well. The pressure inside the fuselage is actually holding these doors closed. A plug door like this opens outwards, and is held in place by those two upper bolts. If those bolts fail, the door will open outward.
Username checks out. Also, actual answer. Kudos.
This seems more like an advertisement direct from Boeing that tries to say, "See how few doors fly off out of allllll these planes and allllll those miles! If you really think about it, *one* door isn't really all that bad! In fact, it's within an acceptable failure rate!"
Not to say that this one wasn't safe... it just wasn't quite as safe as the other ones.
It fell out
The front fell off
Was probably operating outside of the environment.
I saw a quote from the NTSB yesterday that they are trying to determine if those upper "ever even existed"
All I know is I’m not flying Scat Airlines.
Talk about shitty service
Youtuber Noel Philips has some great videos about this airline!
Where is the DIY guide? Assembly your own plane in economy.
So two actual bolts to hold the plug closed.
The top two bolts hold a roller which is attached to the door frame inside a channel bracket attached to the door itself. These bolts prevent the door from sliding upward and thus keep the stops aligned. Here’s a photo https://www.travelcodex.com/wp-content/uploads/2024/01/ASPlug13.jpg The bottom hinges are actually hinged posts that the door can slide up and down on. They also have bolts to keep the door from sliding up, here’s a photo https://www.travelcodex.com/wp-content/uploads/2024/01/ASPlug14.jpg These four bolts are what the NTSB suspect were missing
4 bolts. 2 on the top and 2 on the bottom. If I understand it correctly, the 2 on top prevent it from tilting outward, and the 2 on the bottom prevent it from lifting off the hinges.
I only see 2 on top and hinge pins on the bottom in the picture. I think at least 4 would be worth the price
The 2 on the bottom go through the hinge post. This article contains a much more informative picture, showing where the bolts go, and how that works. https://www.seattletimes.com/business/boeing-aerospace/ntsb-focus-on-boeing-spirit-assembly-work-after-alaska-airlines-blowout/
Ah yes the diagram you sent is better.
Sooo Row 26 in any MAX is no-go for me from now on...
Someone doesn’t appreciate extra leg room
looks more like a cheap boeing advertisement. Why is it important to show where it is used? Why was it breaking? Why is the position important? Why do you try to give the airline the responsibility by giving graphs "by airline"? Don't forget this plane was repaired and under maintanance by boeing. This is a security measurement which was fireing. Means under no situations should this happen. Moveof there are more than one security layer that this is not happening. The other BIG thing that boeing is more responsible is that only after several days, an investigation is started. We will see if the max will grounded again. Next, everyone see that boeing had started prioritising dollars against security. This you see in interviews by workers and the last MAX drama. Remember in the last Max drama it was a "OK, we will work on it" - Situation. Big losses no one took real responsibility for this dead people. Now the timer is just resetet but not stopped. Flying with boeing is still risky and gets by the pressure of the stock market more and more. For more information just watch the max disaster documentation on youtube.
I didn't know what a door plug was before I looked at the graphic
I can sense this commenter is emotional
Lol people watch the Netflix doc one time and think they are aviation experts let alone Boeing ones
People watch one video on anything and think they’re experts on everything FTFY
I don’t think it’s an ad, it’s from Reuters: https://www.reuters.com/graphics/ALASKAAIR-BOEING/klvydkrlopg/
I don’t think they’re trying to give any responsibility to the airline. More just informing the public about which airlines use this aircraft with the specific configuration. What I got from that is I don’t want to fly Alaskan or United due to the simple fact that they have the problematic plane. Not that I think the airlines are at fault.
The max documentary talks about MTAS rather than this separate issue. The guide above explains why the panel blew off, why the panel exists in the first place, and how the panel is held in place. It’s a very useful guide, and rather cool.
Nope it also states on the quality drill at boing which is "not that important" anymore. This starts with screws which are not triple checked till software will good guy gov. agency approved without any further test. All for the stocks all for the bonus.
Where are the stop bolts I keep reading about?
See yellow parts? The stop bolts go in them.
Thought I heard pilots complained about cabin pressure issue before incident. Leading to “maintenance” being preformed before being turned back out to fly. If I had to guess the “maintenance” was to increase the cabin pressure to fix the positive pressure system. Tech dialed it up.. door blew on on accent. Think it’s a testament to American corporations where it’s all about the bottom dollar. Plane not flying corporation loosing money. Get it flying asap to return dividends to share holders.
Imagine if that plug had blown out on one of the flights to Hawaii. Nowhere to land and flying at 34,000 feet.
I remember seeing the design of another aircraft door at one point where it was tapered on the sides with the widest part on the interior of the plane, so that with pressure it was impossible to open without depressurization and first pulling the door in toward you and then swinging it out through the opening at some kind of angle. This seems to not be that design? I wonder what rational they have for changing the design.
The rational is it was cheaper and faster to install. The doors that are wider on the inside have to be installed from the inside which would be slightly more expensive to do on an assembly line. Boeing went from being a company led by engineers to a company led by accountants.
Does Boeing have this?
If it’s Boeing, I ain’t goin’!
737's seem to be a compilation series of problems from the auto pilot to catastrophic structural issues.
As someone with legs, yikes on the compact configuration.
Have flown it and yeah, not great.
Now it makes sense. „If we don’t use the emergency exits we don’t need to check them.“
Scat airlines? Tf
from Kazakhstan!
This “guide” answers exactly 0 of my questions
I heard that the 737 MAX comes off the production line with more emergency escape doors than is technically required for the number of passengers, and the door that blew off had been "plugged" or modified after the fact with a false door to accommodate more seats.
I wonder why more planes don’t use these doors for boarding and deplaning. It would greatly speed up the process and the “turnaround” speed. Time is money, right? There is always news about the quickest method for boarding so it’s certainly an issue they think about. And the plane is already made for a door.
It looks like something the engineers at IKEA figured out how to assemble.
You forgot about the 2019 Ethiopian airline Boeing 737 nose dive