Safety Flash
Dropped object: Lay tower adjuster leg pin
Dropped object: Lay tower adjuster leg pin
- IMCA
- Safety Flash
- IMCA SF 11/17
- Dropped ObjectsInspection and MaintenanceMachinery and Equipment
- Dropped objectsMechanical failure
- Inspection and maintenance
- Non-destructive testingOperating and work proceduresPositive retention and reliable securingPreventive maintenance
- Marine industry
- Vessel
Summary
A 600 kg securing pin fell 16 m to deck after keeper plate bolts loosened; nobody was injured. The flash identifies unclear maintenance and inspection arrangements and possible movement and lubrication issues. Actions included structural NDT, stronger anti-rotation bolts, bolt locking, revised inspection criteria and survival-mode positioning during transits.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Non-destructive testing; NDT; non-destructive examination; NDE.
Classifications: Operating and work procedures.
Classifications: Positive retention and reliable securing.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
The securing pin from a tiltable lay system (TLS) adjuster leg, weighing 600 kg, fell 16 m to deck.
IMCA SF 11/17. Themes: dropped objects, inspection and maintenance, machinery and equipment.