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superbizzy73
Topic Author
Posts: 191
Joined: Wed Sep 30, 2009 5:43 am

NTSB: Wing separated from plane before deadly crash in Snohomish County

Tue Nov 22, 2022 10:08 pm

https://www.kiro7.com/news/local/ntsb-w ... 67PIIKRNXE

Just happened last Friday. Seems rather unusual for a wing on a newer built Caravan to seperate like this.
 
GalaxyFlyer
Posts: 10287
Joined: Fri Jan 01, 2016 4:44 am

Re: NTSB: Wing separated from plane before deadly crash in Snohomish County

Tue Nov 22, 2022 10:19 pm

You can over G it and break the wing, could be hidden damage, could be work incorrectly done by Raisbeck.
 
SoCalPilot
Posts: 279
Joined: Fri Mar 17, 2017 4:37 am

Re: NTSB: Wing separated from plane before deadly crash in Snohomish County

Tue Nov 22, 2022 10:23 pm

GalaxyFlyer wrote:
You can over G it and break the wing, could be hidden damage, could be work incorrectly done by Raisbeck.

I was thinking it might be related to a mod done by Raisbeck also, but their press release states that it was collecting baseline performance data prior to installing modifications.

https://raisbeck.com/raisbeck-responds-to-snohomish-county-aircraft-accident/
 
UPS757Pilot
Posts: 230
Joined: Fri Apr 20, 2007 5:22 am

Re: NTSB: Wing separated from plane before deadly crash in Snohomish County

Tue Nov 22, 2022 10:43 pm

 
slcguy
Posts: 473
Joined: Wed Jul 09, 2008 12:09 pm

Re: NTSB: Wing separated from plane before deadly crash in Snohomish County

Wed Nov 23, 2022 7:35 am

Some serious high G moves at relatively low level altitude as shown in Juan Browne's review., Led to highspeed dive and aircraft breakup. vertical tail and possible cargo pod at first impact site, right wing at second site and main wreakage 1000 feet beyond that. Seems like bit extreme flight envelope testing for a simple mod that will spend 99.9% of It's life at 180k tor less straight and level. Of course if the Raisbeck cargo mod failed first that could change things but the Caravan was probably at the edge of it's envelope at that point.
 
frmrCapCadet
Posts: 5747
Joined: Thu May 29, 2008 8:24 pm

Re: NTSB: Wing separated from plane before deadly crash in Snohomish County

Wed Nov 23, 2022 2:07 pm

Naïve question: Four aboard when doing some edge testing seems like at least two too many?
 
F9Animal
Posts: 4987
Joined: Thu Dec 16, 2004 7:13 am

Re: NTSB: Wing separated from plane before deadly crash in Snohomish County

Wed Nov 23, 2022 6:13 pm

frmrCapCadet wrote:
Naïve question: Four aboard when doing some edge testing seems like at least two too many?


It is my understanding the additional 2 onboard were part of the crew testing. They may have been monitoring computer data perhaps?

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