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Underwater Tunnel Thruster Exchanges & Repairs

Bow Thrusters, Stern Thrusters and all other Tunnel Thrusters can be repaired underwater either completely wet or in a dry hyperbaric environment.

Subsea Global Solutions has the equipment and personnel to rapidly deploy anywhere around the world with minimal to no lead-time to perform underwater tunnel thruster repairs. Flexible Hyperbaric Cofferdams and tooling that is packaged for transport on commercial airliners as baggage, makes a global repair solution possible. Bow Thrusters, Stern Thrusters and all other Tunnel Thrusters can be repaired underwater either completely wet or in a dry hyperbaric environment. Subsea Global Solutions Divers who are trained as factory technicians in the inspection and repair of tunnel thrusters makes Subsea Global Solutions the best choice for a fully manufacturer warranted repair.

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Wet or Dry we can put your Tunnel Thrusters back in service quickly.

Complete Tunnel thruster exchanges can be done either completely wet or with Flexible Hyperbaric Cofferdams. Instead of waiting for the dry dock to execute critical tunnel thruster maintenance, Subsea Global Solutions can provide fixed price tunnel thruster exchanges in its home port locations as part of a long-term maintenance program. Exchanges can be done while vessels remain in service with no impact to a vessel’s schedule or itinerary.

Case Studies

Hull Breach on Tanker

During cargo operations, a submerged pile pierced through the hull. Subsea Global Solutions worked together with owner and class to develop repair plan that included the design and installation of an engineered cofferdam.

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Offshore Oil & Gas

A Blue-Chip oil & gas company incurred several defects and cracks in a critical attachment member of an FPSO’s hull – these defects required repair to allow continued operation.

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Skeg Ripped from Azipod

3 month out of dry dock, galvanic corrosion caused heavy cavitation/erosion damage on PORT and STBD side rudders.

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Subsea Global Solutions Reseats Shifted Tailshaft Afloat and Executes a Stern Seal Repair

The client indicated that the tailshaft had shifted aft approximately 200 mm when the ship’s crew was doing maintenance on the shaft coupling. It resulted in the aft water seal losing contact with the liner, causing large amounts of water ingress into the stern tube.

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Subsea Global Solutions Completes an Afloat Rudder Stock Seal Replacement

This complex underwater repair was completed to the client's satisfaction in 5 days in conjunction with various other repair works. Subsea Global Solutions managed both the underwater and internal portions of this repair to ensure each phase was executed seamlessly.

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Underwater Propeller Blade Straightening – Cold Static Loading

Subsea Global Solutions can restore your propeller blades as a permanent repair, to OEM design geometry by cold static loading with our underwater propeller blade press.

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Double Bow Thruster Removal by Subsea Global Solutions

The benefits of removing a damaged bow thruster afloat are many. The customer was able to prevent further damage to the bearings and gears caused by the presence of seawater in the gear housing and the procedures allows the units to be overhauled prior to the vessels next dry-dock—or, they can be re-installed afloat by Subsea Global Solutions, which would help to eliminate the need for additional tug cost.

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Afloat Bow Thruster Blade Seal Exchange by Subsea Global Solutions

The project was executed with two Subsea Global Solutions teams working around the clock. While the vessel trimming process was in motion, the team onboard the vessel began to drain the oil from the thruster while the dive team began removing the bow thruster tunnel gratings to gain full access to the bow thruster.

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Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

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Subsea Global Solutions solves serious problems: Assisting a large, fully laden post-Panamax container vessel with steering issues

Subsea Global Solutions solves serious problems: Assisting a large fully laden Post-Panamax container vessel with steering issues. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water float out removal, repair, and refit of a 110 mt rudder. Find out how our underwater inspection and survey services deliver practical, cost-effective solutions to a complex offshore problem. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water rudder float out removal, repair, and refit of a 110 mt rudder. Helping owners safely reduce their risk exposure and related costs that would include diversions, delays, and downtime.

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Galvanic Corrosion on Rudders

3 months out of dry dock, galvanic corrosion caused heavy cavitation/ erosion damage on PORT and STBD side rudders.

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Underwater Tunnel Thruster Exchanges & Repairs

Hull Cleaning

Subsea Global Solutions has the equipment and personnel to rapidly deploy anywhere around the world with minimal to no lead-time to perform underwater tunnel thruster repairs. Flexible Hyperbaric Cofferdams and tooling that is packaged for transport on commercial airliners as baggage, makes a global repair solution possible. Bow Thrusters, Stern Thrusters and all other Tunnel Thrusters can be repaired underwater either completely wet or in a dry hyperbaric environment. Subsea Global Solutions Divers who are trained as factory technicians in the inspection and repair of tunnel thrusters makes Subsea Global Solutions the best choice for a fully manufacturer warranted repair.

Wet or Dry we can put your Tunnel Thrusters back in service quickly.

Complete Tunnel thruster exchanges can be done either completely wet or with Flexible Hyperbaric Cofferdams. Instead of waiting for the dry dock to execute critical tunnel thruster maintenance, Subsea Global Solutions can provide fixed price tunnel thruster exchanges in its home port locations as part of a long-term maintenance program. Exchanges can be done while vessels remain in service with no impact to a vessel’s schedule or itinerary.

Looking for underwater maintenance and repair services?

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