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-   -   Anybody lose a window? (http://forums.pelicanparts.com/off-topic-discussions/1153285-anybody-lose-window.html)

Jeff Higgins 03-12-2024 04:25 PM

Quote:

Originally Posted by Zeke (Post 12211905)
I read that. You are spot on about the reporting. No mention that the soap was one of the violations. So the soap method was glorified so as to mean that is a hack way to install seals.

Actually I can't think of a better way to install a Porsche windshield or a bicycle handlebar grip.

Furthermore, I have used dollar bills, matchbook covers and CC's to check door weatherstipping and indeed, door binding points. Since they are blind when the door is closed, if the bill won't slip out you found your spot.

(BTW, modeling clay works very well too finding too close of a gap. It's kinda like using Plastigauge when putting a motor together to check bearing tolerances.)

Yup. Anybody who has actually ever done anything has used all of that stuff. Set point gaps with matchbook covers, apply adhesives or whatnot with old credit cards, and on and on. I couldn't think of a better tool than a hotel key card for the task described. Just another breathless Karen reporting to their peers.

greglepore 03-12-2024 04:43 PM

Quote:

Originally Posted by Zeke (Post 12211679)
He lost the ability to fly the plane. OK, if he had passed out and the co-pilot was in the head, no one is controlling the plane. And it was on autopilot. So what is the default in a failure like that? It would seem to me that the controls should be frozen in the current position, not move enough on their own, with no power, for the plane to take a sudden dive.

Something is wrong with the way the electronics are designed and built. If you're on a tractor with a loader and the engine quits, does the bucket just drop to the ground from a lifted position? Hell no.

If the computers lose info from the flight instruments, the autopilot can't work. It needs sensor info.

Zeke 03-12-2024 05:35 PM

Quote:

Originally Posted by greglepore (Post 12211920)
If the computers lose info from the flight instruments, the autopilot can't work. It needs sensor info.

That I understand. And I asked why normal hydraulics just stop where they are when the power goes down.

You take me for an idiot.

What apparently happened (apparently) was that it wasn't that nothing happened when the systems went down. Something changed so much to the point that the plane dove at a greater rate than gravity. IOW, it was aimed down suddenly. In the loader comparison, the bucket would have slammed down faster than the rate of gravity.

That doesn't happen. I've been around a lot of backhoes and such. If the motor loses power and the bucket is off the ground, it stays off the ground. Yet the plane apparently decided to go somewhere other than into a glide. You would think that (a glide) would be the default, not to nose dive.

If I'm an idiot for thinking that, so be it.

Quote:

Originally Posted by greglepore (Post 12211920)
If the computers lose info from the flight instruments, the autopilot can't work. It needs sensor info.

Got to love the internet. Thank you for the revelation.

john70t 03-12-2024 07:09 PM

I'm guessing a sensor (gyro/elevator angle/pitot tube) could have been faulty....leading to auto-pilot thinking that rapid diving was best to stabilize level flight.

It thought it was in severe stall conditions and needed to fix it.

hcoles 03-13-2024 06:54 AM

Maybe I missed something..... Re. the wheel coming off, one report was that the wheel hub failed. The nut holding the wheel on remained in place.

greglepore 03-13-2024 10:40 AM

Quote:

Originally Posted by Zeke (Post 12211950)
That I understand. And I asked why normal hydraulics just stop where they are when the power goes down.

You take me for an idiot.

What apparently happened (apparently) was that it wasn't that nothing happened when the systems went down. Something changed so much to the point that the plane dove at a greater rate than gravity. IOW, it was aimed down suddenly. In the loader comparison, the bucket would have slammed down faster than the rate of gravity.

That doesn't happen. I've been around a lot of backhoes and such. If the motor loses power and the bucket is off the ground, it stays off the ground. Yet the plane apparently decided to go somewhere other than into a glide. You would think that (a glide) would be the default, not to nose dive.

If I'm an idiot for thinking that, so be it.

Got to love the internet. Thank you for the revelation.

Geez, sorry.

1990C4S 03-14-2024 07:10 AM

Quote:

Originally Posted by HobieMarty (Post 12211688)
I am flying to Korea in a month and all of this stuff has me a bit worried.


Quote:

Originally Posted by Bill Douglas (Post 12211889)
All the best to Kim.

Notice he never mentioned flying home?

1990C4S 03-14-2024 07:18 AM

Quote:

Originally Posted by Jeff Higgins (Post 12211841)
This one, to me, crosses the line over into "sensationalist reporting". Someone who has no idea what they are talking about found out they use Dawn dish soap to lubricate rubber seals for installation. And then - oh my God!!! - they used "wet cheesecloth" to clean up the residue!!! Horror of horrors!!!

Anyone who has ever installed a rubber seal in or on anything, or has spooned a tire onto a rim, has probably use something similar. Windex is popular, dish soap, you name it. It all cleans up with water. None of it does any harm to the materials on which it is applied.

The issue was not the soap, or the cheesecloth. The issue was that the procedures were not called out, or not clear.

The reporter calls the use of dish soap 'alarming'. I would say the only serious issue is that the procedure is not properly documented, or they made up their own procedure. Concerning, but not alarming. And misplaced 'alarm' by the idiot reporter, who failed to grasp the root cause of the issue.

Zeke 03-14-2024 07:29 AM

Quote:

Originally Posted by 1990C4S (Post 12212816)
The issue was not the soap, or the cheesecloth. The issue was that the procedures were not called out, or not clear.

The reporter calls the use of dish soap 'alarming'. I would say the only serious issue is that the procedure is not properly documented, or they made up their own procedure. Concerning, but not alarming. And misplaced 'alarm' by the idiot reporter, who failed to grasp the root cause of the issue.

Agreed. Instructions for putting on your pants probably don't say put the zipper in front.

I'm not being that silly in my example. In occupational therapy patients often have to learn how to put pants on with a disability. Besides, it's all I could think of off the cuff.

HobieMarty 03-14-2024 08:22 AM

Quote:

Originally Posted by 1990C4S (Post 12212812)
Notice he never mentioned flying home?

Okay well, I do hope to be flying home as well. Lol. Hmmmm, but If I meet a nice Korean girl...[emoji848] oh wait, I'm married, Lol.

Sent from my SM-S916U using Tapatalk

911 Rod 03-14-2024 08:31 AM

Quote:

Originally Posted by HobieMarty (Post 12212864)
Okay well, I do hope to be flying home as well. Lol. Hmmmm, but If I meet a nice Korean girl...[emoji848] oh wait, I'm married, Lol.

Sent from my SM-S916U using Tapatalk

What happens in Korea ......

HobieMarty 03-14-2024 08:47 AM

Quote:

Originally Posted by 911 Rod (Post 12212874)
What happens in Korea ......

Yep!!! [emoji23]

Sent from my SM-S916U using Tapatalk

Ralph3. 03-14-2024 09:38 AM

Post merger with Douglas the culture of the company moved away from a engineering firm to being driven by financial returns.

1990C4S 03-14-2024 09:51 AM

Quote:

Originally Posted by Zeke (Post 12212826)
Agreed. Instructions for putting on your pants probably don't say put the zipper in front.

Adding a non-approved liquid to a seal or checking/scraping a seal with a non-approved tool probably won't kill anyone, but it could be the start of the slippery slope that does. The choice of liquid and the tool are not up to the 'worker' to choose.

Putting your pants on backwards won't kill people.

Zeke 03-14-2024 10:36 AM

Quote:

Originally Posted by 1990C4S (Post 12212939)
Adding a non-approved liquid to a seal or checking/scraping a seal with a non-approved tool probably won't kill anyone, but it could be the start of the slippery slope that does. The choice of liquid and the tool are not up to the 'worker' to choose.

Putting your pants on backwards won't kill people.

I can't believe I'm reading this. Close the god damn factory, we found some soap.

David 03-14-2024 02:33 PM

Not airplane related but:

At the time I wasn't much of a pump expert (I'm a turbine guy) but I was called out to a plant to look at a pump our shop had repaired maybe 15 years ago. The pump packing flange or gland (the thing that pushes in the packing on the shaft to keep whatever's in the pump from leaking out the shaft had fallen off and hit the moving shaft.

Why did the flange fall off? They couldn't get the required water drip through the packing (it must leak a little) so they kept loosening it.

Why wouldn't it leak? The mechanic said they put anti-seize all over the packing like they had for 30 years before installing it but this time it didn't work. I'm thinking to myself, I'm not a pump expert but I think anti-seize would keep anything from leaking... at all.

I start my pump education by finding out what you're supposed to put on pump packing: packing lubricant or if that's not available... dishwashing soap!

So for 30 years or more, our whole field pump department was putting anti-seize on pump packing. In their defense, most modern pump packing looks like anti-seize; it's silvery and slick.

To this day, I'm still convincing them not to use anti-seize. I also ask every pump expert I meet if they've heard of such a thing and they usually have one case or two they've seen but they're amazed by the stupidity.

Of course the main problem is there's no procedure. Our shop has a procedure for almost everything. Except which way the zipper goes.

pmax 03-14-2024 02:59 PM

Quote:

Originally Posted by A930Rocket (Post 12167332)
Every task on a plane being built is documented, who did the work and the bolts in question, should’ve been checked by internal inspectors.

...


https://www.ntsb.gov/news/Documents/Letter%20to%20Senate%20Committee%20on%20Commerce,% 20Science%20&%20Transportation%20on%20Boeing%20737-9%20MAX%20Door%20Plug%20Blowout.pdf

http://forums.pelicanparts.com/uploa...1710457145.jpg

berettafan 03-14-2024 03:51 PM

Dawn is a miracle product for pressing bushings. Seem to recall using it when I rebuilt the suspension on my now long gone ‘70. Helps install which saves the bushings from tearing damage.

Zeke 03-14-2024 04:14 PM

Dawn is getting too much publicity here. I use Ivory Soap for almost everything but the laundry and the occasional dishwasher use. I use Ivory on nails and screws, I use it machining, I wash my hands with it. I've used it as shampoo. No worse than a lot of pricey stuff.

pmax 03-14-2024 04:14 PM

Quote:

Originally Posted by 1990C4S (Post 12212816)
I would say the only serious issue is that ...

http://forums.pelicanparts.com/uploa...1710461647.jpg


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