Deep in the valley on the outskirts of Collegedale, TN (MP-19.0), the crew of NS 223 (Kansas City,MO - Atlanta,GA) shows what 8,800hp is made of as the pair of Dash 9s is getting the heavy pig train a running head start for the north side Howardsville Mountain on the NS Atlanta North-End. Unfortunately the train will get as far Cohutta, GA only 8 rail miles south of of the 19 Mile-post due to a two hot wheels that would get off the Hot Box Detector (HBD) at the mile point 25.0H. The train will have to wait in the town of Cohutta, GA til dispatcher get a hold of the car shop department in Chattanooga to send a crew out to look for the two hotbox deep into the train.