Safety Flash
Failure of lifeboat release hook mechanism
Failure of lifeboat release hook mechanism
- IMCA
- Safety Flash
- IMCA SF 13/14
- Evacuation, Escape and RescueInspection and MaintenanceStructural and Asset Integrity
- Mechanical failureStructural and asset integrity
- Inspection and maintenanceLifting operations
- LifeboatLifting accessories
- Pre-use checks
- Marine industry
- Vessel
Summary
During quarterly lifeboat lowering, a forward release hook opened after its linkage sheared, leaving the boat vertical and suspended from the aft hook. Four occupants were uninjured. Inspection found bent linkage in another lifeboat. The flash describes the on-load mechanism, limited locking indication and recommended engagement checks before launch, after recovery and during routine inspections.
Classifications: Mechanical failure; equipment failure.
Classifications: Structural and asset integrity; asset integrity; structural integrity.
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: Pre-use checks; pre-use inspection.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
A failed lifeboat release linkage caused the boat to drop into a vertical position while remaining suspended from another hook.
IMCA SF 13/14. Themes: evacuation, escape and rescue, inspection and maintenance, structural and asset integrity.