Investigation Report
Drill-Line Failure Dropped Travelling Block and Top Drive
07-29-2005 01:50 G12008 SS/349 Injury - Dropped Rig Traveling Block
- BSEE
- Investigation Report
- Unknown
- Crushing and pinch pointsDropped objectsMechanical failure
- DrillingInspection and maintenance
- Wire rope
- Non-destructive testingPreventive maintenance
- Upstream oil and gas
- Offshore installation
Summary
Investigation of a drill-line failure on Rowan Gorilla IV that dropped the travelling block and top drive, trapping a roughneck’s foot. The report attributes line damage to impact loading while running casing, with defective manufacture a possible contributor. It documents inspections, repairs and Rowan’s recommendations for inspection and maintenance.
Classifications: Crushing and pinch points; crush hazards; pinch points.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Drilling; well drilling.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Wire rope; steel wire rope.
Classifications: Non-destructive testing; NDT; non-destructive examination; NDE.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.