
It appears that this "portable" carnival ride experienced a series malfunction when one of the carriages in the Ferris Wheel got caught and basically tipped over.
http://www.cnn.com/2016/08/08/health/tennessee-ferris-wheel/index.html
This accident comes just 1 day after after a 10 yr old boy was killed due to a fatal neck injury on a 168 ft water thrill ride in Kansas.

http://www.kansascity.com/news/local/article94429257.html