
Program Overview
Birdon’s Dampier shipyard at the Toll Supply Base completed emergency dry-docking, inspection and major repair works for the Svitzer Dorado to assess and rectify damage to the portside azimuth thruster.
The works were commissioned to assess and rectify damage to the portside azimuth thruster and associated structural components. Following inspection, it was determined that both the thruster and its support cone structure required full replacement.
Birdon delivered a rapid-response, multi-discipline solution to restore propulsion capability and return the vessel to service.
Quick Facts
- Client
Svitzer
- Location
Birdon Dampier Shipyard, Toll Supply Base
- Lifecycle Stage
Repair
- Vessel
Svitzer Dorado – Harbour Tug
Objectives
- Safely dry dock and inspect vessel
- Remove and replace damaged portside azimuth thruster
- Replace structurally compromised thruster support cone
- Restore vessel propulsion capability and structural integrity
- Minimise operational downtime through efficient repair delivery
Challenges
- Emergency mobilisation and rapid response
- Significant structural damage to thruster support cone requiring full replacement
- Complex integration of new cone structure with existing hull
- Precision alignment requirements for azimuth thruster installation
- Coordinating multi-trade repair works within a remote WA environment
Birdon’s Approach
Birdon delivered a coordinated structural and mechanical repair program, working closely with specialist subcontractors to execute the complex scope.
The damaged azimuth thruster was removed to enable full inspection of the surrounding structure. Following confirmation of damage, the compromised thruster support cone was cut out of the hull.
A new support cone was then fitted, aligned and welded into position, ensuring structural integrity and compliance with required standards.
Mechanical reinstatement works included installation and alignment of a new azimuth thruster, restoring propulsion capability. Additional hull repairs were undertaken as required, followed by repainting of the vessel below the waterline to reinstate protective coatings.
All works were conducted under strict safety and environmental controls, with a focus on quality, precision and efficient turnaround.


Outcomes & Impact
- Successful recovery of vessel
- Full replacement of critical propulsion and structural components
- Restoration of operational capability and vessel readiness
- Delivery of complex emergency repairs within a controlled and safe environment
- Reinforced client confidence through responsive and technically capable execution
The project demonstrates Birdon’s ability to deliver high-consequence repair works, integrating structural and mechanical disciplines to restore critical maritime assets.
Capabilities in Action
- Emergency dry-docking and inspection services
- Azimuth thruster removal, replacement and alignment
- Structural steel renewal including cone replacement
- Hull repairs and below waterline coatings
- Multi-trade coordination with specialist subcontractors
- Rapid-response delivery in remote shipyard environments


