Safety Flash
Hyperbaric lifeboat emergency lifting chain link failure
Hyperbaric lifeboat emergency lifting chain link failure
- IMCA
- Safety Flash
- IMCA SF 21/16
- CorrosionCrane and RiggingInspection and MaintenanceLifting Operations
- CorrosionMechanical failure
- Inspection and maintenanceLifting operations
- LifeboatLifting accessories
- Marine industry
Summary
During routine hyperbaric lifeboat recovery, two lifting-chain links split at an approximately 7-tonne crane readout. The drop was minimal, with no shell damage. Inspection revealed corrosion and pre-existing cracks. Suggested remedial measures included removing protective coverings for thorough visual inspection against appropriate acceptance criteria; manufacturer testing remained pending.
Classifications: Corrosion; corrosion damage.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Lifeboat; survival craft.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Marine industry; shipping industry; maritime sector.
Summary
Corroded chain links parted while recovering a hyperbaric lifeboat, prompting quarantine and more thorough inspection.
IMCA SF 21/16. Themes: corrosion, crane and rigging, inspection and maintenance, lifting operations.