E175 Winglet Falls Off In Turbulance
05-04-2022, 12:55 PM
#2
Gets Weekends Off
Joined APC: Jun 2005
Posts: 521
Envoy E170 loses winglet in CAT
A few other photos can be found online, but looks like a good shear took the winglet right off the wing.
I know it is not structural, but I probably would have needed to change my pants.
https://viewfromthewing.com/american...at-36000-feet/
I know it is not structural, but I probably would have needed to change my pants.
https://viewfromthewing.com/american...at-36000-feet/
05-04-2022, 02:22 PM
#4
Disinterested Third Party
Joined APC: Jun 2012
Posts: 6,006
Other than to maintain the lighting in the winglet, there is little maintenance to perform, but the only suggestion as to the loss occurs in a FAA statement that it failed in moderate to severe turbulence. No further information is given, meaning anything further is unfounded speculation.
05-04-2022, 05:47 PM
#6
In a land of unicorns
Joined APC: Apr 2014
Position: Whale FO
Posts: 6,463
Originally Posted by JohnBurke
Other than to maintain the lighting in the winglet, there is little maintenance to perform, but the only suggestion as to the loss occurs in a FAA statement that it failed in moderate to severe turbulence. No further information is given, meaning anything further is unfounded speculation.
There is a service bulletin about inspecting the enhanced winglet attach structure, and a modification that should be done at a heavy check. It was not done on this particular plane.
I bet the bulletin will be an AD very soon.
05-04-2022, 06:57 PM
#7
Disinterested Third Party
Joined APC: Jun 2012
Posts: 6,006
Originally Posted by Twin Wasp
It would be “extreme” turbulence if there’s structural damage.
05-04-2022, 07:12 PM
#8
On Reserve
Joined APC: Jan 2022
Posts: 13
Another thing to note is the winglets on the originally purchased 175’s were the enhanced winglets which over time were shown to degrade (show cracking and loss of structural integrity, however was never a safety of flight issue being winglets only served as a way to help fuel economy and if detached they didn’t effect safety of flight) At every heavy maintenance cycle they were to be replaced, or if they showed degradation prior to a heavy maintenance cycle they’d be replaced right then. It’s likely these weren’t replaced yet.
05-05-2022, 04:47 AM
#9
Gets Weekends Off
Joined APC: Jul 2008
Posts: 854
Originally Posted by Round Luggage
I can’t think of a more appropriate website to host this article. For such a new airplane disregarding any mechanical write up prior would there be a reason for this to have been wrenched on since the factory?
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