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SUCCESSFUL TEMPORARY CRUISE SHIP REPAIR

Monday, March 16, 2020 

Underwater repair company Hydrex reports that while its diver/technician teams was performing an underwater bow thruster repair in Phuket, a cruise ship suffered grounding damage while on its way to the same location.

Hydrex contacted the owners of the vessel and proposed to have the team inspect the vessel when it arrived in Phuket and perform any needed repair on-site. Because the damage was severe a permanent repair was not an option. A drydock visit in Singapore had therefore already been scheduled, though the ship could not sail that far on its own.

Hydrex offered an underwater solution that would allow the vessel to sail safely to Singapore for extensive permanent repairs, a proposal that was gladly accepted by the owner. As soon as the team finished the bow thruster repair they shifted their equipment to the other quay and started the operation on the cruise ship.

First the divers performed a detailed underwater inspection of the damage. This revealed a large gap in the portside shell plating in the location of the freshwater tank. The bilge keel in this area was also severely deformed.  Four smaller hull penetrations were discovered in front of the gap as well as large scraping marks and indents behind it. After a meeting with the superintendent of the vessel and the attending class surveyor the proposed repair plan was accepted.

The repair involved installation of a doubler plate over the gap in the hull and patches over the smaller holes. The doubler plate was designed to follow the contours of the deformed hull. Together with the patches if was fabricated by the Hydrex team on-site and installed underwater. A stiffener was welded over the plate and part of the hull for extra protection. The repair was then inspected and approved by the class surveyor. The cruise ship could then sail safely to drydock in Singapore.

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