Investigation Report
Failure of mooring line on board LNG carrier Zarga with 1 person injured
Failure of mooring line on board LNG carrier Zarga with 1 person injured
- MAIB
- Investigation Report
- Line of FireVessel and Mooring
- Material fatigueMechanical failureMooring line snapback
- Inspection and maintenanceMooring operations
- Mooring fittingsMooring linesWinch
- Exclusion zonesOperational supervisionPreventive maintenanceRisk assessment
- Marine industry
- Port and quaysideVessel
Summary
Investigates a spring-line failure during Zarga’s repositioning at South Hook LNG terminal, seriously injuring the mooring officer. Destructive testing, microscopy and modelling examined jacketed HMPE rope degradation and snap-back. Findings address axial compression fatigue, line–fairlead compatibility, misleading safe areas, supervision and ineffective inspection and retirement arrangements.
Classifications: Material fatigue; metal fatigue.
Classifications: Mechanical failure; equipment failure.
Classifications: Mooring line snapback; snap-back; snapback; mooring line recoil.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Mooring operations; berthing; unmooring.
Classifications: Mooring fittings; cleats; bollards.
Classifications: Mooring lines; mooring rope; mooring wire.
Classifications: Winch; winches.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Operational supervision.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Risk assessment; hazard assessment.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Port and quayside; quayside; harbour; harbor.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
South Hook LNG terminal, Milford Haven, Wales.
Themes: line of fire, vessel and mooring.