the wheels of the capsule. it's still a pretty precarious situation, isn't it. it's a narrow shot, not even straight. rocks could fall and jam things up f. describe the very real dangers right now amid the celebratory turn as well. >> reporter: right. we totally expect it. there's no reason to rush it. we have to pull it out quickly. they're going to give it a check each time it comes up and give it maintenance just like your car for an important trip. nothing unexpected. they were doing some maintenance, also going to the capsule because when these men come down they have video hooked up, oxygen. they want to make sure everything is perfect. we'll be seeing more of that over the next roughly 27 more hours. this will go on until sometime thursday morning or early thursday afternoon.