Safety Flash
Thermal tunnel buoyancy when deployed subsea
Thermal tunnel buoyancy when deployed subsea
- IMCA
- Safety Flash
- IMCA SF 12/15
- Machinery and EquipmentManagement of ChangeMarine Operations
- Marine operations
- Functional testingIndependent audit and verificationManagement of change
- Marine industry
- Subsea
Summary
A thermal tunnel failed to sink during subsea construction because the manufacturer’s buoyancy calculations were incorrect. Additional weight enabled installation beneath a concrete mattress. The flash discusses wet testing, independent buoyancy verification and management of change, while identifying a potential recurrence if the mattress were removed and weight fixings had deteriorated.
Classifications: Marine operations; maritime operations.
Classifications: Functional testing; function test.
Classifications: Independent audit and verification.
Classifications: Management of change; MOC; change management.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Subsea; underwater worksite.
Summary
A subsea thermal tunnel would not sink because the manufacturer’s buoyancy calculations were incorrect.
IMCA SF 12/15. Themes: machinery and equipment, management of change, marine operations.