4-Apr-13- The water is cold but the welding rods are hot! Hull fracture repair- Antarctic

Did you ever want to join an expedition to the Antarctic?  I am sure that the adventurous ones reading this edition of The Chronicles wishes they could enjoy an expeditionary cruise to the Antarctic.  Well, the diver / technicians of Subsea Global Solutions never plan on seeing the underside of an expeditionary cruise vessel; especially while it was cruising the in extreme southern Atlantic ocean did you ever want to join an expedition to the Antarctic?  I am sure that the adventurous ones reading this edition of The Chronicles wishes they could enjoy an expeditionary cruise to the Antarctic.  Well, the diver / technicians of Subsea Global Solutions never plan on seeing the underside of an expeditionary cruise vessel; especially while it was cruising the in extreme southern Atlantic ocean.

ND weld repair- weldingND weld repair- backbar welded

While cruising the southern hemisphere, a fracture was identified below the water line.  The crewinstalled temporary measures inboard to maintain the hull integrity until the expert diver / welders of Subsea Global Solutions could arrive on scene.  Once a repair location was identified in the vessel’s itinerary the client worked together with the Miami office of Subsea Global Solutions to move the necessary gear and personnel by private charter to the vessels next port of call.  Once on seen the diver / welders performed non-destructive testing (Magnetic Particle examination) to identify the extent of the fracture.  Once the ends were identified and drill stopped a backing bar was welded outboard of the vessel utilizing “A” class wet welding procedures.  Simultaneously the  team constructed a sufficiently sized cofferdam to encapsulate the affected area.  With the cofferdam installed, the fracture was ground out of the affected shell plate.  Magnetic Particle examination was again performed to ensure the entire fracture was removed.  Once confirmed, the affected area was welded up.  Non-destructive testing was again performed to assure no additional linear indications or defects were present in the repaired area or adjoining shell plate.  Once confirmed, the cofferdam was removed.  As an additional measure of safety, the backing bar was seal welded to the shell plate from the outboard side using coded wet welder / divers.  As the member companies of Subsea Global Solutions maintain “A” class hyperbaric wet welding procedures and diver / welders coded to these procedures, a consistent and strong weld was applied.

The vessel was returned back to service with no off-hire, loss of a port of call or delay in departure.  All work was completed within the vessel’s scheduled port stop.  Another adventure for the diver / technicians of Subsea Global Solutions.  Diving in the pristine waters of the extreme southern Atlantic is a cold experience but a once in a lifetime dive for our team!  We not only delivered unrivaled service to our client, but also enjoyed some swim time with the Penguins!

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