UWILD Inspection Thailand: ABS Class In-Water Survey at Songkhla Anchorage
- MaxiDive
- 2 days ago
- 4 min read
UWILD Inspection Thailand under ABS Class Approval
MaxiDive successfully completed a UWILD inspection Thailand project at Songkhla Anchorage under American Bureau of Shipping (ABS) Class approval.
The in-water survey was performed on a commercial vessel while afloat, allowing the required underwater inspection to be completed without dry docking. The project supported class requirements, vessel condition assessment, and operational continuity in Southern Thailand.
The operation was carried out under calm sea conditions with approximately 5 meters of underwater visibility, using SSDS equipment and measurement tools.
Project Scope – UWILD Inspection Thailand at Songkhla Anchorage
The scope of this UWILD inspection Thailand operation included a detailed underwater survey of the vessel’s external hull and key underwater components.
The inspection covered:
Hull plating condition
Flat bottom assessment
Weld seam condition
Bilge keels
Sea chests
Echo sounder and speed log
ICCP system area
Sacrificial anodes
Forward thrusters
Propeller assemblies
Rudder assemblies
Marine growth assessment
Underwater photo and video documentation
This type of class-approved inspection provides shipowners and managers with reliable underwater evidence for technical review and maintenance planning.
Hull Plating Inspection Results
During the UWILD inspection Thailand project, the hull plating was found to be lightly covered by soft and hard marine growth.
The inspection noted:
Light soft marine growth including algae and slime
Scattered hard marine growth including barnacles
Loss of top coat in the bow area consistent with anchor chain abrasion
Visible paint generally found in good condition
Flat bottom free from grounding and abnormalities
Top coat and weld seams generally intact
No concave weld seams noted
No structural damage or anomalies detected
These findings confirmed that the hull structure remained in acceptable condition, with no major structural concerns identified during the underwater inspection.
Appendages Inspection during UWILD Inspection Thailand
The appendages were inspected as part of the UWILD inspection Thailand scope.
The inspection confirmed:
Both bilge keels were found with normal profiles
No structural anomalies were observed on bilge keels
Sea chests were secure and in place
Echo sounder and speed log were free from structural anomalies
ICCP system was fitted to the vessel
Anodes were secure and active with minimal depletion noted
Forward thrusters were free from anomalies
This section of the survey provided important confirmation that the vessel’s underwater appendages remained secure and operational.
Propeller Assembly Inspection Results
The propeller assemblies were also inspected during the UWILD inspection Thailand operation.
The inspection found:
Rope guards with no abnormalities
Boss caps secure with no structural anomalies
Stern tube assemblies secure
No structural anomalies or oil leakage observed
Propeller surface roughness measured at Grade “D” by Rubert scale
The propeller inspection helps vessel operators understand propulsion condition, surface roughness, and potential efficiency impact. Even when no structural damage is found, propeller surface condition remains important for maintenance planning and vessel performance.
Rudder Assembly Inspection Results
The rudder assemblies were inspected for structure, movement, weld seam
condition, and marine growth.
The findings included:
Rudder area covered by soft and hard marine growth
No abnormal rudder movement detected during inspection
Rudder weld seams intact
No concave weld seams noted
No structural abnormality detected
These findings supported the overall conclusion that the inspected underwater structure remained operationally safe, with no immediate structural defects identified.
Marine Growth Assessment
Marine growth was recorded across different underwater areas of the vessel, including hull plating, flat bottom, stern arrangement, and rudder area.
The inspection identified both:
Soft marine growth: algae and slime
Hard marine growth: barnacles and baby barnacles
Marine growth assessment is an important part of a UWILD inspection Thailand project because it helps determine hull condition, inspection visibility, maintenance requirements, and potential operational impact.
Why UWILD Inspection Thailand Matters for Vessel Operators
A UWILD inspection Thailand service allows vessel operators to complete class-related underwater inspections without entering dry dock.
This provides several operational benefits:
Reduced dry dock dependency
Lower vessel downtime
Faster survey completion
Class-approved underwater documentation
Better maintenance planning
Continued vessel availability
Inspection coverage at regional ports and anchorages
For vessels operating in Thailand and the Gulf of Thailand, UWILD and in-water survey services are a practical alternative when class requirements can be met without docking.
MaxiDive provides class-approved underwater services across Thailand, including in-water surveys, underwater inspections, hull cleaning, propeller polishing, and underwater repairs.
MaxiDive UWILD Inspection Services in Thailand
MaxiDive provides professional UWILD inspection Thailand services for shipowners, managers, technical departments, and classification-related survey requirements.
Our capabilities include:
Certified commercial diving teams
SSDS underwater inspection operations
Hull and appendage condition surveys
Propeller and rudder inspections
Underwater photo and video documentation
Coordination with classification societies
Operations across Thai ports and anchorages
This project at Songkhla Anchorage demonstrates MaxiDive’s ability to support vessel operators not only at Thailand’s major central ports, but also across regional maritime locations in Southern Thailand.
Conclusion
This UWILD inspection Thailand project at Songkhla Anchorage was completed successfully under ABS Class approval.
The inspection confirmed that the vessel’s hull plating, appendages, propeller assemblies, and rudder assemblies were free from major structural damage or abnormalities. Marine growth was documented, propeller roughness was recorded, and underwater evidence was collected for technical review.
By completing the survey while the vessel remained afloat, MaxiDive helped support class compliance, reduce downtime, and provide reliable underwater inspection documentation without dry docking.
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