On May 21, 1998, a 22-year-old male fence technician trainee (the victim) for an invisible fence distributorship was caught between the handlebar of a line-laying machine and the rear door jamb of a cargo van as he attempted to unload the machine. The victim was accompanying the head fence-technician during initial job training and had been dispatched to a residence to complete a fence installation which had been started by another technician. While preparing to begin work, the victim entered the back of the cargo van to unload the machine. When he started the machine's engine, the machine either immediately moved in reverse or moved in reverse when he engaged the reverse drive mechanism. The handlebars of the machine pinned the victim against the inside upper edge of the van's rear door jamb. Co-workers, who were working at the side of the residence, heard a squealing noise from the van, went to investigate and found the victim pinned. They shut down the machine and removed him form the van. One of the co-workers, a certified EMT began first aid while the homeowner notified 911. A local emergency medical squad responded within 7 minutes and transported the victim to a local medical center where he was pronounced dead, shortly after arrival. NIOSH investigators concluded that to prevent similar incidents in the future, employers should: Ensure that there is a safe clearance between transport vehicles and mobile machines to allow safe loading and unloading of equipment. Ensure that employees follow written safe procedures for loading and unloading mobile machines from transport vehicles. Additionally, equipment manufactures should: Develop safe operating procedures which include all aspects of the machine's use, including loading and unloading from transport vehicles. Consider the use of engineering controls to eliminate operating positions which expose workers to hazards of tight clearance.