Accident Report Detail

Accident Summary Nr: 200900231 - Employee killed when struck by load block

Accident Summary Nr: 200900231 -- Report ID: 0418400 -- Event Date: 03/21/1997
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
109135228	03/21/1997	1622	0	Massman Construction Company, Inc.

Abstract: Employee #1, age 19, and coworkers were involved with a nighttime caisson drilling project. He was attending a bentonite slurry hole charging station at the slurry overflow pit immediately beside the hole being drilled, while a kelly bar and loaded drilling bucket were being hoisted out of the hole. The wire rope load line parted and the drilling tools fell back into the hole. When they struck the bottom, the single-sheave, 15,000 lb load block became detached from the swivel shackle attachment (picking point) atop the kelly bar, which allowed the load block to fall further. It struck and killed Employee #1.

Keywords: HOISTING MECHANISM, WIRE ROPE, BROKEN CABLE, CONSTRUCTION, EQUIPMENT FAILURE, DRILL RIG--NON-OIL, STRUCK BY, FALLING OBJECT

Accident Details
End Use		Project Type		Project Cost	Stories	Non-building Height	Fatality
Bridge		Alteration or rehabilitation		$20,000,000 and over			X

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation	Construction
1	109135228			Fatality	Fracture	Construction laborers	Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Forming for piers or pylons Fatality Cause: Struck by falling object/projectile

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