Investigation Report
Parting of mooring line on ro-ro cargo vessel Dart 8 with 1 person injured
Parting of mooring line on ro-ro cargo vessel Dart 8 with 1 person injured
- MAIB
- Investigation Report
- Unknown
- Marine OperationsVessel and Mooring
- Mechanical failureMooring line snapback
- Inspection and maintenanceMooring operations
- Mooring linesWinch
- Functional testingPreventive maintenance
- Marine industry
- Port and quaysideVessel
Summary
An investigation into a mooring rope failure during Dart 8’s berthing on the River Thames, seriously injuring the bosun. Rope analysis identified severe abrasion and reduced residual strength, while winch testing found no defects. Missed slackening instructions and ineffective inspections are described, alongside subsequent planned rope maintenance.
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 lines; mooring rope; mooring wire.
Classifications: Winch; winches.
Classifications: Functional testing; function test.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Port and quayside; quayside; harbour; harbor.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
An investigation into a mooring-line failure during berthing that injured one person.
Themes: marine operations, vessel and mooring.