Accident Report Detail

Accident Summary Nr: 200050755 - One employee killed, one injured, when crane boom collapses

Accident Summary Nr: 200050755 -- Report ID: 0728900 -- Event Date: 08/19/1999
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
300056215	08/19/1999	1796	0	Kaw Valley Builders
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
300056223	08/19/1999	1542	0	Brb Contractors, Inc.

Abstract: Employee #1, of Kaw Valley Builders, was part of a crew removing rotating biological contactors (RBCs) from the roof of the wastewater treatment plant in Beatrice, NE. He was standing on the concrete roof, signaling Employee #2, of BRB Contractors, who was operating a Koehring spanner crane, model #550, serial #C-13639. Employee #2 was swinging one of the RBC units away from the building to be set on the ground when the crane boom collapsed and fell back across the roof, causing it to cave in. Employee #1 fell inside the building and landed on other RBC units; he was crushed and killed by the collapsed crane boom. Employee #2 was crushed by the falling load as it landed on the cab of his crane. He suffered head lacerations, broken teeth, and compound fractures of his right arm, for which he was hospitalized. When this report was written, Employee #2 had been released from the hospital. The RBCs weighed 25,600 pounds as a new unit, according to shipping invoices. The RBC involved in the accident was estimated to have weighed at least 28,250 lb.

Keywords: WORK RULES, SUSPENDED LOAD, CRANE OPERATOR, FRACTURE, COLLAPSE, CRANE BOOM, CONSTRUCTION, CRUSHED, FALLING OBJECT, UNSTABLE LOAD

Accident Details
End Use		Project Type		Project Cost	Stories	Non-building Height	Fatality
Sewer/water treatment plant		Maintenance or repair		$50,000 to $250,000	1	16	X

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation	Construction
1	300056215			Fatality	Other	Occupation not reported	Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Installing equipment (HVAC and other) Fatality Cause: Struck by falling object/projectile
2	300056223			Hospitalized injury	Other	Occupation not reported	Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Installing equipment (HVAC and other) Fatality Cause: Crushed/run-over/trapped of operator by operating

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