Alaska Airlines flight forced to make an emergency landing... 82

[JohnRBaker]

Turbulence...

John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[LittleInch]

Also don't forget there is are two springs at the bottom which "assist" removal of the door plug. It's not clear to me what sort of downwards force is required to get the door plug to seat or if the force essentially makes the door "weightless" or feel a lot lighter than its 25 kg actual weight.

The pads and lugs also have fine adjustment screws so that the plug is always in contact with the frame at those 12 locations and hence a bit of friction when on the ground and even more when pressurised. So maybe there was a little bit of time when the aircraft was slightly negative pressure to the outside and the door was pushed in a bit and then started lifting.

Going to be the most expensive bolts in history....

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[3DDave]

The adjustment screws are set to have clearance on the ground. Differential air pressure forces the door out to produce contact between the screws and mating pads.

 

[LittleInch]

How much clearance? Can't be much.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[debodine]

Thanks all, I appreciate the feedback.

 

[dik]

My son sent me this from the internet (somewhere)

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[1503-44]

I once tried to visit that church, or a similar one. There are a few still left standing. Took most of the day to get there. When we finally rounded the last curve in the road ... nothing. Empty meadow. It had burned completely to the ground during just the previous month. No fire alarm or extinguishing system.

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

 

[Alistair_Heaton]

I have run out of free articles on Seattle times.

Seems to be a lot of headlines coming out about FAA and Boeing about quality reset.

Is it anything substantive or just headlines?

 

[SWComposites]

paste the page links into this site to read:

https://12ft.io/

 

[dik]

The clock's ticking, again...

https://www.design-engineering.com/...ys to create safety, quality improvement plan

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[SWComposites]

yeah, the FAA has finally stumbled over a spine in one of their closets.

 

[Brian Malone]

SWComposites your post is quite humorous and unfortunately sobering

 

[LittleInch]

Well all the max 9s are back flying again apparently.

https://www.reuters.com/business/ae...boeing-737-max-9-planes-inspected-2024-02-05/

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Sparweb]

"Regulatory agency currently completing audit of Seattle factory where planes, like the 737 Max, are assembled."

Nope. Missed the mark.
The FAA needs to audit the factories in Wichita, not Seattle.
Everyone knows those are owned by Spirit, and that Spirit is at least 1/2 of the problem.
80% of the touch-time labour done on 737's is done by Spirit.

 

[dik]

all facilities?

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[Alistair_Heaton]

Seems Boeing is in talks to buy Sprint

 

[Compositepro]

For those who are not aware, the Spirit plant used to be called Boeing, Wichita before Spirit bought it.

 

[Alistair_Heaton]

its way bigger than that these days.

Although I can't seem to find any issue with the quality in the other production lines.

 

[JohnRBaker]

And Boeing Wichita is where they used to manufacture Minuteman Missiles.

John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[Alistair_Heaton]

Also Steerman aircraft before that.

That plant has some amazing history.