Emergency Repairs- Propeller Removal with Vessel in Service

Picking Blade 8
Emergencies happen on vessels each and every day.  Cruise ship operators rely on the capabilities of Subsea Global Solutions to deliver unrivaled service.  While operating in the Caribbean, a cruise vessel detected deterioration of a critical bearing in one of it’s propulsion azimuthing thrusters.  Even with the thruster taken out of service, the windmilling of the propeller continued to deteriorate the bearing increasing it’s risk of complete failure.  To avoid a complete failure and to ensure the vessel remained in service, Subsea Global Solutions was called into to remove the built up propeller.

Working with the cruise ship operations staff, Subsea Global Solutions project management and operations staff evaluated the itinerary of the vessel and developed a port by port time line. Once approved, critical equipment was strategically placed in the necessary ports of call and work begun.

Subsea Global Solutions prepared the propeller for extraction.  This required that the epoxy fairing the propeller blade hold down bolts into the propeller to be completely extracted from the blade bolt holes.  This process required the epoxy to be hydro-blasted away completely using a specialized hydro-blaster specifically configured for this application.

4 Blades On Flat Bed-14In the next port of call blade extraction was performed.  Subsea Global Solutions placed all rigging into place so that blades could be efficiently extracted from the propeller and rigged on-shore.  Using a hydraulically configured ratcheting wrench configured for underwater applications, Subsea Global Solutions efficiently extracted all the blade bolts on each blade.  Blades were removed one-by-one to the surface and the azimuthing thruster was now free of any risk of continued bearing deterioration..

Throughout the entire process Subsea Global Solutions’ project management staff maintained time line communications with ship and operational management staff.  This ensured that the vessel could leave on time without impact or delay.

Subsea Global Solutions yet again demonstrates what unrivaled service is all about.  We do what you say when we say we’re going to do it!  We do it safely, efficiently and on-time.  This is what Subsea Global Solutions is all about and we look forward to working with you.

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