Investigation Report
Riser Dropped from Gantry Crane During Completion Operations
02-12-2020 04:30 G27278 MC 519 Crane incident - >$25K $264,021.13 - Other: Dropped Object Gantry Crane
- BSEE
- Investigation Report
- Unknown
- Dropped objectsHuman factorsMechanical failure
- Inspection and maintenanceLifting operations
- CraneHose
- Competence and trainingOperating and work proceduresOperational supervision
- Upstream oil and gas
- Vessel
Summary
BSEE investigated a riser dropped from a gantry crane aboard Rowan Resolute during completion operations. Hydraulic hoses were replaced while the load remained suspended, then found incorrectly connected. The report identifies untrained personnel, an unused emergency lowering procedure and excessive hydraulic pressure. No injuries occurred, but crane and walkway damage resulted.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Human factors; human performance; ergonomics.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Crane; cranes.
Classifications: Hose; flexible hose.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Operating and work procedures.
Classifications: Operational supervision.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Vessel; aboard ship; onboard vessel.