Structural cracks found in 737NG

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Hop Harrigan
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Structural cracks found in 737NG

Unread post by Hop Harrigan » Sun Sep 29, 2019 6:57 pm

CNN reporting this at the moment
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Re: Structural cracks found in 737NG

Unread post by shadow » Mon Sep 30, 2019 7:39 pm

Yep, got posted on airliners.net yesterday not good for boeing.
Worth a read about the technical side of what's gone wrong.

https://www.airliners.net/forum/viewtop ... 4588b81abc
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Re: Structural cracks found in 737NG

Unread post by Ugly Duckling » Mon Sep 30, 2019 8:06 pm

shadow wrote:
Mon Sep 30, 2019 7:39 pm
Yep, got posted on airliners.net yesterday not good for boeing.
Worth a read about the technical side of what's gone wrong.

https://www.airliners.net/forum/viewtop ... 4588b81abc
The requested topic does not exist.
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Re: Structural cracks found in 737NG

Unread post by Breytie » Mon Sep 30, 2019 8:23 pm

Ugly Duckling wrote:
Mon Sep 30, 2019 8:06 pm
shadow wrote:
Mon Sep 30, 2019 7:39 pm
Yep, got posted on airliners.net yesterday not good for boeing.
Worth a read about the technical side of what's gone wrong.

https://www.airliners.net/forum/viewtop ... 4588b81abc
The requested topic does not exist.
Had the same issue
try:
https://www.airliners.net/forum/viewtop ... &t=1431999
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Re: Structural cracks found in 737NG

Unread post by Ugly Duckling » Mon Sep 30, 2019 9:09 pm

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Re: Structural cracks found in 737NG

Unread post by StressMerchant » Wed Oct 02, 2019 10:44 am

As a matter of interest, has anyone seen a formal statement from the FAA or Boeing on this issue. A lot of news reports talk of FAA ordering inspections, but I can't find the AD or announcement on the FAA website.
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Re: Structural cracks found in 737NG

Unread post by Ugly Duckling » Wed Oct 02, 2019 10:50 am

StressMerchant wrote:
Wed Oct 02, 2019 10:44 am
As a matter of interest, has anyone seen a formal statement from the FAA or Boeing on this issue. A lot of news reports talk of FAA ordering inspections, but I can't find the AD or announcement on the FAA website.
Seems like it is WIP
viewtopic.php?f=9&t=223594#p2071536
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Re: Structural cracks found in 737NG

Unread post by tansg » Thu Oct 03, 2019 6:16 am

StressMerchant wrote:
Wed Oct 02, 2019 10:44 am
As a matter of interest, has anyone seen a formal statement from the FAA or Boeing on this issue. A lot of news reports talk of FAA ordering inspections, but I can't find the AD or announcement on the FAA website.
AD out yesterday

https://www.flightglobal.com/news/artic ... ru-461232/

Not showing on the FAA website yet.
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Re: Structural cracks found in 737NG

Unread post by StressMerchant » Thu Oct 03, 2019 10:44 am

If the link is right, it seems they'll issue it as an emergency AD. Must be a big issue.

I wonder if the root cause is the design, the manufacture, the installation, or the operation.

BTW, any idea what alloy it is? One report said Al 7075, but I would not have expected that alloy in such a location. I know the bigger aircraft use titanium, not sure if the 737 series warranted that level.
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Re: Structural cracks found in 737NG

Unread post by Selfloader » Thu Oct 03, 2019 8:27 pm

This has already been reported in Mango Trim Problems.
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Re: Structural cracks found in 737NG

Unread post by tansg » Sun Oct 06, 2019 6:44 am

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Re: Structural cracks found in 737NG

Unread post by StressMerchant » Sun Oct 06, 2019 6:51 am

The interesting part is that in some cases the cracks have gone through the frame and the strap. That has significant implications for the inspection regime and the current Instructions for Continuing Airworthiness.
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Re: Structural cracks found in 737NG

Unread post by MadMacs » Thu Oct 10, 2019 9:42 am

Cracks on wing supports found on at least 36 older Boeing 737 jets, American & Brazil airlines ground planes
https://www.rt.com/news/470579-boeing-n ... acks-wing/
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Re: Structural cracks found in 737NG

Unread post by Jasondn78 » Fri Oct 11, 2019 9:29 am

Have any of the B737NG models flying in South Africa been found to have the same issue?
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Re: Structural cracks found in 737NG

Unread post by Ugly Duckling » Thu Oct 31, 2019 11:05 pm

Qantas urged to ground all of its 737s after second aircraft crack discovered
https://www.smh.com.au/business/compani ... 031-p5360y
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