Safety Flash
Diver fouled on descending load
Diver fouled on descending load
- IMCA
- Safety Flash
- IMCA SF 01/10
- Crane and RiggingDivingLifting OperationsLine of Fire
- Dropped objectsEntanglementLine of fire
- Diving operationsLifting operationsRigging
- Diver umbilicalLifting accessoriesWire rope
- Lifting planRisk assessment
- Upstream oil and gas
- Subsea
Summary
An air diver disconnecting an FPSO riser was dragged down to -70fsw after a lateral pull caused the riser to drop and part its webbing slings. His umbilical fouled on the crane wire. The flash addresses umbilical slack management, underwater sling selection, load calculations and separation of divers from planned load movements.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Entanglement; caught in machinery; drawn into machinery.
Classifications: Line of fire; struck-by hazards.
Classifications: Diving operations; diving; commercial diving.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: Diver umbilical; diving umbilical.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Wire rope; steel wire rope.
Classifications: Lifting plan; lift planning.
Classifications: Risk assessment; hazard assessment.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Subsea; underwater worksite.
Summary
A falling riser parted its slings and fouled a diver’s umbilical on crane wire during underwater work.
IMCA SF 01/10. Themes: crane and rigging, diving, lifting operations, line of fire.