A 26-year-old mechanic was struck and killed by a side ring from a multi-piece (split) tire rim. The mechanic was installing a rim that had been serviced by a co-worker. The wheel was remounted pressurized, checked, and stored overnight. That morning, the victim began to install the tire on a dump truck. He hand-tightened the lug nuts and then used an impact wrench to continue the job. As he began to tighten the lug nuts, the side ring of the rim came loose, striking and killing him. The investigation revealed that the rim parts were heavily pitted by corrosion, obscuring the stamping […]