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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 700005 - Employee Killed When Struck By Cylinder Cover

Accident: 700005 -- Report ID: 0522000 -- Event Date: 08/22/1996
InspectionOpen DateSICEstablishment Name
10312772608/22/19963462The Dayton Forging And Heat Treating Company

Employee #1 was walking through a department where two coworkers were operating a 4,000 lb steam forging hammer. The ram/piston assembly returned to its top position with such force that it struck the top of the machine cylinder, and the cylinder cover and internal steam-cushioned plunger were dislodged. Employee #1 was struck by the cover and killed. A metallurgical analysis of the cylinder wall found a substandard casting and a pre-existing crack. The secondary securing means for the cover (a single 5/8 in. wire rope) failed to restrain it and prevent flying parts.

Keywords: cover, cylinder, inadequate maint, casting, equipment failure, struck by, flying object

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 103127726 Fatality Concussion Forging machine operators

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