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Construction Superintendent Dies When Crushed By a Falling Crane Boom in California
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1996/10/02
[PDF-21.29 KB]
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Description:A 43-year-old male construction superintendent (victim) died after being crushed under the lattice boom of a 175-ton crawler crane. Two days before the incident, the slings attached to the load broke causing the boom to recoil and bounce back and forth. Thereafter, a thorough inspection of the cables was not performed. At the time of the incident, the boom was in the process of being lowered so the victim could check the load, a special probe. The boom was to be lowered, with no provision for supporting it, so that the probe could be laid out on the ground and be repaired. The victim was standing near the tip of the boom observing the probe when the 7/8-inch boom hoist cable broke. The boom fell straight down and pinned the superintendent under the area of the boom tip. The CA/FACE investigator concluded that, in order to prevent future occurrences, employers should: 1. Keep all personnel out of the area of danger of the load or the boom by delineating the danger area's boundaries. 2. Assure the boom hoist cable is relaxed when the boom has been fully lowered to perform an inspection, so any cable damage becomes apparent. 3. Support the boom when it is lowered to check loads so it cannot fall or collapse when employees are underneath it.
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Pages in Document:6 pdf pages
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NIOSHTIC Number:nn:20027085
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NTIS Accession Number:PB2007-112028
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Citation:Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, FACE 96CA003, 1996 Oct;:1-6;
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Federal Fiscal Year:1997
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Performing Organization:California Department of Health Services
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Peer Reviewed:False
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Start Date:1991/09/30
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End Date:2006/08/31
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