NASA-LLIS-0239

Lessons Learned - Lifting Slings for Cranes

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T18:16:50Z
date available	2017-09-04T18:16:50Z
date copyright	07/09/1993
date issued	1993
identifier other	HNZCQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/199778
description abstract	Description of Driving Event: During a crane disassembly, a cable sling broke, dropping a 10 ton crane counterweight. The crane crew was removing the front counterweight from the crane to place it on a flat bed trailer when the mishap occurred. The sling used was a rusty, 4 leg, 5/8 inch diameter cable about 15 feet long. Only two legs were used during this lifting operation. The investigating committee found that calculations made from a standard table published by U.S. Steel showed that the allowable working load for a new cable of this size using 2 legs was only 5.28 tons. The crane operators, based on their experience and intuition, grossly underestimated the strength of the sling.
language	English
title	NASA-LLIS-0239	num
title	Lessons Learned - Lifting Slings for Cranes	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1993
contenttype	fulltext
subject keywords	Lifting Devices