On 13 July 1978, Bugorski was checking a malfunctioning piece of equipment when the safety mechanisms failed. Bugorski was leaning over the equipment when he stuck his head in the path of the 76 GeV proton beam.
On July 13, 1978, Bugorski examined a malfunctioning device while safety controls failed. As he leaned over the equipment, Bugorski inserted his head into the path of the 76 GeV proton beam.