UWILD Inspection Laem Chabang: ABS Class In-Water Survey for Vessel Condition Verification
- MaxiDive

- May 11
- 4 min read

MaxiDive successfully completed a UWILD inspection Laem Chabang project with ABS Class attendance at Laem Chabang Port, Thailand. The in-water survey was performed while the vessel remained afloat, allowing the required underwater inspection to be completed without dry docking.
The project focused on vessel condition verification, underwater documentation, and inspection of key hull and appendage areas. The work was carried out under calm sea conditions, with underwater visibility of approximately 1–1.5 meters.

UWILD Inspection Laem Chabang with ABS Class Attendance
A UWILD inspection Laem Chabang operation allows vessel owners and managers to complete class-related underwater inspection requirements without interrupting operations for dry dock entry.
For this project, MaxiDive’s commercial diving team conducted an in-water survey under ABS Class attendance using SSDS equipment and measurement tools. The inspection covered the vessel’s hull plating, appendages, propeller assemblies, bow thruster and other underwater areas required for technical review.
Laem Chabang Port is one of Thailand’s most important commercial ports, making efficient underwater inspection support essential for vessels operating on tight schedules.

Project Scope – UWILD Inspection Laem Chabang
The scope of this UWILD inspection Laem Chabang project included a detailed underwater survey of the vessel’s external condition.
The inspection covered:
Hull plating condition
Port and starboard side marine growth
Flat bottom condition
Bow area coating condition
Weld seam inspection
Transducers
Sea chest gratings
Overboard discharges
Drain plugs
Bilge keels
Bow thruster
Propeller blades, hub and boss
Stern tube
Underwater documentation for class review
This inspection provided the vessel’s technical team and attending class surveyor with visual evidence of the vessel’s underwater condition.
Hull Plating Inspection Results
During the UWILD inspection Laem Chabang project, the vessel’s hull plating was found to be lightly covered by soft marine growth, mainly algae on the port and starboard sides.
The inspection findings included:
Light soft marine growth on the hull
Loss of top coat in the bow area consistent with anchor chain abrasion
Visible paint generally found in good condition
Some areas of bare steel noted
Flat bottom free from grounding and abnormalities
Overall top coat and weld seams intact
No concave weld seams noted
No structural damage or anomalies detected
These findings confirmed that the vessel’s hull structure remained in acceptable condition, with no major structural concerns identified during the underwater survey.
Appendages Inspection during UWILD Inspection Laem Chabang
The appendages were inspected to verify their condition, security and structural integrity.
The inspection confirmed:
Transducers securely in place
Sea chest gratings secure and fastened in place
Discharges free from abnormalities
Drain plugs secure, with no leakage noted
Bilge keels in normal profile, with no damage noted
Bow thruster in good condition, with no sign of contact damage
This part of the survey is important because appendages are critical for vessel operation, navigation, cooling water intake, drainage and maneuvering performance.
Propeller Assembly Inspection Results
The propeller assemblies were inspected as part of the UWILD inspection Laem Chabang scope.
The inspection found:
Propeller blades, hub and boss lightly covered by soft marine growth
Propeller surface roughness measured at Grade “C” by Rubert scale
Stern tube free from structural anomalies
Propeller surface condition directly affects vessel efficiency and fuel performance. Even when no structural damage is detected, surface roughness and marine growth should be recorded for maintenance planning.
Bow Thruster and Stern Tube Condition
The bow thruster was inspected and found in good condition, with no signs of contact damage. This is an important result for vessels operating in busy port environments where maneuvering reliability is critical.
The stern tube was also inspected and found free from structural anomalies. No leakage or abnormal condition was reported during the underwater inspection.
These findings support the overall conclusion that the inspected underwater systems were operationally sound at the time of survey.
Why UWILD Inspection Laem Chabang Matters
A UWILD inspection Laem Chabang service helps vessel operators reduce dry dock dependency while still supporting class-related inspection requirements.
Key benefits include:
Reduced vessel downtime
No dry dock requirement when class conditions allow
Faster inspection completion in port
Underwater photo and video documentation
Class attendance support
Better maintenance planning
Verification of hull, appendages and propulsion-related components
For commercial vessels calling at Laem Chabang Port, this type of in-water survey provides a practical way to maintain compliance and operational continuity.
MaxiDive Underwater Inspection Services in Thailand
MaxiDive provides professional underwater inspection and commercial diving services across Thailand’s major ports and anchorages.
Our capabilities include:
UWILD inspection
In-water survey
Hull condition assessment
Propeller and rudder inspection
Bow thruster inspection
Sea chest and appendage inspection
Underwater photo and video reporting
Class attendance support
Commercial diving operations using SSDS equipment
This UWILD inspection Laem Chabang project demonstrates MaxiDive’s ability to support vessel owners, managers and class surveyors with reliable underwater inspection services in one of Thailand’s busiest ports.
Conclusion
This UWILD inspection Laem Chabang project was completed successfully with ABS Class attendance at Laem Chabang Port, Thailand.
The inspection confirmed that the vessel’s hull plating, appendages, bow thruster, propeller assemblies and stern tube were free from major structural damage or abnormalities. Light marine growth, coating condition and propeller roughness were documented for technical review and maintenance planning.
By completing the survey while the vessel remained afloat, MaxiDive helped support class-related inspection requirements, reduce downtime and provide reliable underwater documentation without dry docking.




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