• Published: 16 Jun 2011
  • Incident ID: 3193

Travelling Block hits Crown Block causing Fatality

Cause & Consequence

  • Moving, flying or falling object
Incident Consequence

Incident Location

Fixed Installation

Incident Activity

Catering / hotel services

Incident Info Source

Step change in Safety

Specific Incident Equipment

Drilling equipment, including TDS, tubulars , crownomatic and draw-works.

Lessons Identified

Inspection records indicated proper functioning of the crown saver device but the safety margin for the setting the crown saver device did not allow for enough distance to stop the blocks from striking the crown.The draw-works was put into the highest gear, not allowing sufficient control of the travelling block.The selection of the relief Driller was not done according to company procedures.

Incident Recommendations

Rig personnel are to comply with all procedures, if compliance is not possible, stob the job and contact the Operations Manager.To assure personnel competency, personnel qualifications for all positions both permanent and relief should be verified by the HR departments.Supervisors are to ensure the the company procedures are followed regarding relief employees.Drillers to ensure the the crown saver device is set correctly.Drillers to test the crown saver device as per company procedures.

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