Safety Flash
UHMPE pull-in rope damaged during mooring connection to buoy
UHMPE pull-in rope damaged during mooring connection to buoy
- IMCA
- Safety Flash
- IMCA SF 33/21
- Marine OperationsVessel and Mooring
- Mechanical failureRisk management
- Mooring operationsROV operations
- Mooring linesRemotely operated vehicle
- Operating and work proceduresRisk assessmentStop-work authority
- Marine industry
- Subsea
Summary
During a subsea buoy mooring connection, a UHMPE pull-in rope escaped ROV control, damaging its arm, while the rope’s other end entered a propeller and was cut. The flash identifies current, propulsion wash, insufficient catenary monitoring and underestimated deck friction, and records amendments to the installation procedure and task plan.
Classifications: Mechanical failure; equipment failure.
Classifications: Risk management; risk evaluation.
Classifications: Mooring operations; berthing; unmooring.
Classifications: ROV operations; remotely operated vehicle operations.
Classifications: Mooring lines; mooring rope; mooring wire.
Classifications: Remotely operated vehicle; ROV; underwater robot.
Classifications: Operating and work procedures.
Classifications: Risk assessment; hazard assessment.
Classifications: Stop-work authority; stop work; stop-work intervention.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Subsea; underwater worksite.
Summary
A synthetic pull-in rope used in a subsea mooring operation was violently pulled out of the control of an ROV
IMCA SF 33/21. Themes: marine operations, vessel and mooring.