Underwater hull cleaning report in Vietnam: CCTV and work records

SVC divers inspect and clean the commissioned surfaces using machine or manual tools where suitable. The worklist identifies hull surfaces, propeller, rudder, stern area, external sea chests and any draft marks requiring cleaning. Vessel type, fouling level, coating condition, owner instructions, port permission, current, visibility and safe diving conditions determine the workable scope.

An initial underwater inspection records the fouling condition before cleaning. Marine growth, barnacles and slime can affect hull condition, propulsion, fuel consumption, cooling-water flow or charter readiness. The report identifies the condition observed and the areas cleaned for the owner’s technical review.

• Initial underwater inspection and hull-fouling condition check
• Machine or manual hull cleaning on the agreed surfaces
• Propeller polishing where appointed
• Rudder and stern-area cleaning
• External sea-chest cleaning
• Draft-mark cleaning if required
• Photographs and CCTV before and after the work
• Diving report identifying completed and inaccessible areas

Photographs let the owner, manager, charterer and superintendent compare the actual condition before cleaning with the worked surface afterwards. Label the hull area, propeller, rudder, external sea chest and cleaned section so a reader can identify the same location across the records.

Keep visible abnormal conditions in the record as well as the cleaned surfaces. Clear area labels and a stated worklist reduce disagreement over what was cleaned and leave a useful maintenance-file, performance-review or charter-requirement record. An area not reached or outside the appointed scope is not marked complete.

The report explains what was inspected, what was cleaned, the condition found and any further repair or drydock attention recommended. It combines the appointed cleaning scope, inspection summary, diver comments, photographs, CCTV and propeller-polishing records where those were commissioned.

This is useful when the vessel is waiting at anchorage, preparing for a voyage, under charter pressure, facing performance complaints or checking underwater condition before drydock. The superintendent can match the records to the actual worklist rather than relying on a general completion statement.

• Location and agreed work window
• Inspected areas and observed fouling condition
• Surfaces cleaned and propeller work completed
• Before-and-after photograph and video references
• Visible abnormal conditions and diver comments
• Areas outside scope, inaccessible areas and visibility limitations
• Further inspection, repair or drydock recommendations where warranted

Before attendance, SVC checks vessel location, working window, weather, tide, current, visibility, port restrictions, vessel movement risk and diver access. Permission and safe conditions determine whether the agreed afloat work can proceed at that location.

The vessel confirms safe access, crew attendance, diver watch and clear communications. Propeller and thrusters are isolated where applicable; suction, discharge and machinery movement that could endanger the divers must be controlled during the work. Confirm the isolation arrangements and the responsible onboard contact before the dive.

For Cai Mep anchorage hull cleaning, identify the vessel’s actual anchorage and available work window. For Vissai-Cua Lo underwater work, send the berth or anchorage and the inspection or cleaning worklist. For Vung Tau underwater inspection and hull cleaning, include access and recording requirements.

At Van Phong, identify the north or south port area and actual terminal. The Vietnam underwater inspection and hull-cleaning service explains the broader commissioned work; this report page focuses on the cleaning and evidence package.