Subsea Global Solutions Completes Complex In-Water Thruster Installation and Rudder Bushing Replacement

Subsea Global Solutions has successfully carried out a challenging in-water thruster installation and rudder bushing replacement, avoiding the need for drydocking. The project, initially scheduled for drydock repairs, was expedited for in-water execution due to vessel operational requirements.

The operation took place in Portland, Oregon, with support from various Subsea Global Solutions locations including Long Beach, Port Angeles, Miami, and Houston. The project involved round-the-clock shifts with multiple teams working concurrently on cofferdam fabrication, thruster installation, and rudder bushing replacement.

One of the critical aspects of the repair was the engineering and on-site fabrication of a custom reusable cofferdam to create a dry environment for the rudder bushing replacement. This massive cofferdam, weighing over 51 metric tons and generating 300 metric tons of buoyant force, completely enclosed the 43.5-metric-ton rudder, enabling a precise and controlled repair process.

By utilizing innovative solutions and expertise, Subsea Global Solutions successfully completed the complex thruster installation and rudder bushing replacement underwater, showcasing their commitment to efficient and effective marine maintenance practices.