Safety Flash
Near miss: uncontrolled movement of mooring chain
Near miss: uncontrolled movement of mooring chain
- IMCA
- Safety Flash
- IMCA SF 03/21
- Control of WorkLine of FireMarine OperationsVessel and Mooring
- Line of fireMechanical failureRisk management
- Anchor handling
- Pumps
- Competence and trainingExclusion zonesJob safety analysisOperating and work procedures
- Marine industry
- Vessel
Summary
A near miss during vessel chain laying involved uncontrolled movement of heavy bottom chain after a circulation pump tripped and the chain lifter lost holding force. The flash identifies incomplete safety systems, inadequate project-specific preparation and missing barriers, with lessons on documentation, technical safeguards, training and familiarisation.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Risk management; risk evaluation.
Classifications: Anchor handling; anchor deployment.
Classifications: Pumps.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Operating and work procedures.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
There was a sudden and uncontrolled movement of very heavy mooring chain during chain laying operations.
IMCA SF 03/21. Themes: control of work, line of fire, marine operations, vessel and mooring.