Abstract: Employee #1, a part-time worker, was using a high-speed air sander as a portable hand-held grinder when the attached charger-type 27 abrasive grinding wheel failed and shattered. Since sanders do not have a safety guard, pieces of the wheel were not contained and a fragment pierced Employee #1's full face shield, striking his nose and right eye. Paramedics rendered first aid and transported Employee #1 to the Palo Verde Hospital; he was subsequently transferred to Loma Linda Medical Center for further treatment. Employee #1 was not wearing basic eye protection under the face shield, as required. As a result, he suffered permanent damage to his right eye.