After receiving a new crew at Wauhatchie for the trip to Nashville, K442 passes MP139 on the Chattanooga subdivision. This is also where Whiteside Tunnel, or Dang Ole Matt Jones Tunnel as the locals call it, sits as it watches the many trains that was it was built to have run through it, but never actually saw due to a new route next to it that diverts it. Leading K442 is SD50-3 8536, one of only 5 SD50 series locomotives active on CSX, or any Class 1 railroad for that matter.