Other Job Site Trade Hazard Site Map Search Spanish Items Help Links Contact eLCOSH Non-English Materials Training Materials NIOSH Home CDC Home eLCOSH Home
ALERT: Scaffolding tubes crush when right angle or swivel clamps were installed and tightened: ThyssenKrupp Safway Inc. PDF Version
(Part of Hanford Lessons Learned)
 

Share this using: |
Department of Energy Richland Operations Office

Follow us on Facebook

Follow us on Twitter

Hanford Lessons Learned/Operating Experience

Just-In-Time Report

2009-RL-HNF-0042

Tube & Coupler Scaffolding Wall Thickness Issue

Date: December 1, 2009

Site/Facility: Hanford/100K

Contractor/Organization: Mission Support Alliance/Mission Assurance

Riggers at the 100K Area identified that the tube wall thickness on some scaffolding tubes would crush when right angle or swivel clamps were installed and tightened. This is isolated to tube and coupler scaffold recently ordered specifically for the 100K Areas. The manufacturer, ThyssenKrupp Safway Inc., has been notified and is developing an action plan to address the issue.

photo Bent/crushed scaffold tube

Important Points:

  • Scaffolding tubes can bend or crush when tightening right angle or swivel clamps.

Contributors:

  • The size difference in tube wall thickness.

Other Important Considerations - Prevent Events

Managers/Supervisors

  • Ensure that scaffold erectors pay particular attention when erecting tube and coupler scaffolding.
  • Ensure that all suspect tubes are immediately removed from use, collected and controlled.

Workers

  • Be cautious of any scaffolding tubes that show signs of crushing or bending.
  • Remove any suspect tubes from service and notify you manger.

This paper appears in the eLCOSH website with the permission of the author and/or copyright holder and may not be reproduced without their consent. eLCOSH is an information clearinghouse. eLCOSH and its sponsors are not responsible for the accuracy of information provided on this web site, nor for its use or misuse.

JIT-LL bulletins are prepared based upon preliminary information in order to rapidly communicate important safety related information in the interest of preventing similar events. This bulletin may be revised or a lessons learned may be issued upon receipt of additional information resulting from related event investigations and/or accident reports. Questions? Send Email to ^Hanford Lessons Learned