Transcript for American injured during hang-gliding adventure in Switzerland

Next tonight here, we hear from the American who went on his first hang gliding ride, but the instructor forgot to attach the passenger's harness. Gio Benitez on the man who broke his wrist and tore his bicep while trying to survive. Three, two, one, go. Run, run, run! Reporter: Chris Gursky of Florida knew his first hang glide in Switzerland would be memorable, but not like this. He and his instructor take off, only to realize he is not attached to the glider. He's holding on for dear life. One hand on the bar, the other tightly around that instructor. I was in survival mode. I just locked on, held on as hard as I could. Reporter: The instructor tries to make an emergency landing, but he can't control it. The glider just goes higher and higher. Gursky starts losing his grip. The instructor grabs Gursky's hand, all while flying the glider with one hand. I didn't have much grip left in me at all. My hand was opening, I was slipping. I had his pant leg, that was about it. I thought to myself, "This is it, I'm going to fall to my death, I'm a goner." Reporter: Finally, the instructor gets that glider closer to the ground and Gursky lets go, breaking his wrist. And David, Gursky also tore his bicep from holding on. The Swiss hang gliding association is now investigating. David? That is just incredible. Gio, thank you. We're glad he's alive and well.

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