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video of boeing stress-testing 777 wings by deflecting them up with cables, against a stationary fuselage

first thing that came to mind after seeing the video of the crashed plane do a cartwheel on its wing.

Also relevant -- an MD-80 losing it's tail during a test flight after a hard landing: http://m.youtube.com/watch?v=SXVmsm_pmUo

The final closeup of the person in the video reacting is former Boeing exec and now Ford CEO Alan Mulally.