>> reporter: the coaster came to the problem. that agency threatening to close screeching to a halt around 7:00 p.m. due to a technical glitch. >> they're stuck in this three poultry plants. in a letter, the usda said position and hopefully they can sanitary conditions at their get the cars in motion and get facilities were so poor that these people off of this ride. they posed a serious ongoing >> reporter: orlando fire rescue threat to public health. crews used an elevator to get to some stunning video from midland county, texas. look at this. the peak of the dropoff. >> once we got to to a a freight train hitting a horizontal position, our guys tractor-trailer at a railroad can put the victims in harnesses crossing. apparently the truck was stuck and were able to walk them off the ride. there. the impact sending the truck's >> reporter: firefighters began carefully removing the riders, slowly guiding them down the flat bed full of pipes flying all over the place. stairs with flashlights to the the train pushed the big rig elevator platform. all 1 thrill seekers finally down the tracks for about a half touched the ground at 9:30. mile. the driver of the semi just left a parks spokesperson saying one the cab before the crash. female passenger was transported it still takes your breath away. to the hospital for neck and back pain. >> scary for the train no other injuries were reported. conductor. >> nothing he can do at that a universal studio spokesperson telling cnn they're point. >> people complain about those. investigating what happened on the ride before it re-opens. the bells, the crossing, what do >> scary night for those folks. we need those for?