Watch: Video shows how rafts on world's tallest slide flew off during testing before 10-year-old boy was 'decapitated'

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Source: ABC News. The original May 2014 opening date for the ride was pushed back after early tests showed rafts carrying sandbags flying off the slide, prompting engineers to tear down half of the ride and reconfigure some angles. Two media sneak preview days in 2014 were also canceled because of problems with a conveyor system that hauls the 100-pound rafts to the top of the slide.