Safety Flash
Incident during lift bag operations
Incident during lift bag operations
- IMCA
- Safety Flash
- IMCA SF 02/03
- Control of WorkDivingDropped ObjectsLifting Operations
- Line of fire
- Diving operationsLifting operationsRigging
- Lifting planOperating and work procedures
- Marine industry
- Subsea
Summary
An oversized underwater lift bag carrying a blind flange ascended uncontrollably after an apparent snag released. No harm or damage occurred. The flash examines over-inflation, visibility limitations and incorrect inverter-line rigging, and records revised company requirements for bag sizing, restraint-line design and clearance along the lifting route.
Classifications: Line of fire; struck-by hazards.
Classifications: Diving operations; diving; commercial diving.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: Lifting plan; lift planning.
Classifications: Operating and work procedures.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Subsea; underwater worksite.
Summary
An oversized underwater lift bag became over-inflated after snagging and released a flange uncontrollably toward the surface.
IMCA SF 02/03. Themes: control of work, diving, dropped objects, lifting operations.