• Published: 17 Jun 2011
  • Incident ID: 3235

Liebherr BOS rubber backstop dropped object

Cause & Consequence

  • Other
Incident Consequence

Incident Location

Drilling unit

Incident Activity

Catering / hotel services

Incident Info Source

Pietro Fong, CSE, Shell Contract Group, Sparrows Offshore Services Ltd, Denmore Road , Bridge of Don, Aberdeen, UK. +44 1224 704868

Specific Incident Equipment

Offshore pedestal crane Liebherr BOS type 40, rubber backstop

Lessons Identified

  • Rubber bonding to steel deteriorates over time
  • Bonding can be further weakened by penetrating oil such as WD40
  • Check rubber security by hand before proceeding to remove plate

Incident Recommendations

  • Inspect rubber backstop for integrity of bonding to backplate
  • Execute backstop replacement PMRs to plan
  • Consider secondary securing method eg stainless wire through rubber attached to bolts

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