Abstract: At about 3:50 p.m. on January 26, 2013, Employee #1, with Trapac, was operating a UTR (Number: 4037) connected to chassis (TAXZ: Number 21584) carrying an intermodal container (SUDU: Number 7505020). Employee #1 had driven his assigned UTR and the container to an aisle (W42) to park the chassis and the container. While Employee #1 was backing the container into its designated space, the container fell off the chassis, causing the UTR to "buck," which injured Employee #1's spine. Employee #1 was working unsupervised at the time of the injury, and no witnesses were identified who could give a statement as to the events of this investigation. Employee #1 was hospitalized in excess of 24 hours after being transported to the Hospital by Emergency Response staff. The hospital had informed the employer that Employee #1 had been discharged from the Emergency Room, but neglected to advise the employer that Employee #1 was still a patient.