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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 14348072 - One Employee Killed, One Injured By Projectile Bearing

Accident: 14348072 -- Report ID: 0418300 -- Event Date: 09/16/1988
InspectionOpen DateSICEstablishment Name
10598702809/16/19883599Air Dro

At approximately 6:30 a.m. on September 16, 1988, Employee #1 was testing a hydraulic cylinder in a test stand. When he inadvertently turned on an air control switch at the operator's control panel, air was introduced into the rod end of the cylinder. The intensified pressure built up until the rod-bearing retainer bolts sheared, causing the bearing and bearing retainer to become a projectile that struck Employee #1 on the left arm, breaking it above the wrist. The bearing and bearing retainer traveled another 25 feet and struck Employee #2, a bystander, on his chest, killing him instantly.

Keywords: chest, fracture, shear, hydraulic cylinder, bearing, bolt, high pressure, struck by, flying object, inattention

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 105987028 Hospitalized injury Fracture Occupation not reported
2 105987028 Fatality Fracture Occupation not reported

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