[Hallb-engineering] Fwd: Lesson Learned "Incorrect Usage of Slings in Lifting Applications - Savannah River Nuclear Solutions (SRNS)"
tilles at jlab.org
Mon Feb 10 10:41:51 EST 2014
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From: mbailey at jlab.org
To: mbailey at jlab.org
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Sent: Monday, February 10, 2014 10:01:13 AM
Subject: Lesson Learned "Incorrect Usage of Slings in Lifting Applications - Savannah River Nuclear Solutions (SRNS)"
Incorrect Usage of Slings in Lifting Applications - Savannah River Nuclear Solutions (SRNS)
Statement of Lessons Learned
For a copy of the original report and pictures, see �Attachments� on Lessons Learned page.
Synthetic slings are not to be used as tie-backs. Once a sling has been utilized as a tie back, it can no longer be utilized for lifting. Discussion of Activities
The condition pictured (See Attachment 1 � Material Handling7 pics.pdf) was discovered during a routine field inspection. Inappropriate condition of the tiebacks include: knots, anchor points, and contamination. Analysis
It is difficult, if not impossible to determining the number of times a tie down is shock loaded during a crane operation. When synthetic slings are used as tie downs their lifting capability is severely compromised. That, and the petroleum product contamination discovered, severely decreased their strength.
If these slings were shock loaded too many times, or later used in a lifting application, they would fail well below their Working Load Limit (WLL). Recommended Actions
Below are the consequences of the above event. They are provided for information and discussion purposes only.
SRNS and SRR Solutions for Tie-Back Equipment
� Use dedicated, color coded steel slings for tie backs.
2/10/2014 9:21:02 AM by Bailey, Mary Jo
Submitted to those with current �SAF402: CRANE OPERATION AND RIGGING
�SAF403: Overhead Crane Operator Qualification Training
Summary Lesson ID: 792
Doc ID: 2014-JLAB-792
Priority: Best Practice
Safety Related: NO
Originator: Bailey, Mary Jo
Issued: 2/10/2014 9:18:40 AM
Approved By: Bailey, Mary Jo
Approved On: 2/10/2014 9:21:02 AM
Contact: Tom Bolton, SRS Hoisting & Rigging Authority - (803) 557-4159
Queued Emails: 0
Sent Emails: 0
Viewings: 2 times Attachments
* M:\wcd\LessonsLearned\DOEOEC\DOE Lessons Learned - Material Handling7 pics.pdf
* M:\wcd\LessonsLearned\DOEOEC\DOE Lessons Learned - Material Handling7.pdf
* Material Handling Equipment
* Cranes & Hoists
* SAF402: CRANE OPERATION AND RIGGING
* SAF403: Overhead Crane Operator Qualification
* *Division Safety Officers (DSOs)
* *Safety Wardens
* *DOE Notification
* *ESH&Q Liaisons
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