Required for:
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As
the age increase the survey becomes more stringent. |
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Required as per regulation-2, CH-XI-I of SOLAS convention. |
It is basically to detect structural weakness & area of corrosion. |
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It has been in forced since 1st July 1993 for oil tankers & bulk carriers including OBO. |
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It commences at 4th annual survey and progressed during succeeding year with a view to complete by 5th anniversary. |
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Additionally
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A specific survey program in written format must be worked out in advance. |
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Dry docking is required to complete a vessel's special survey of hull. |
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All tank coatings are to be evaluated periodically. |
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Tanks having poor coating conditions to be evaluated more frequently. |
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Close up survey to be carried out to check the condition of critical members of ships structure. This includes: |
Transverse web frame rings. |
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Deck and bottom transverses. |
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Transverse and longitudinal bulkheads. |
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Girders and stiffeners. |
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Cargo and ballast tanks and cargo hold stiffening members. |
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Forward cargo hold framings. |
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Cross deck structures and hatch covers. |
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Coamings in bulk carriers. |
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Surveyor may extend close up survey if deemed necessary. |
Areas of substantial corrosion (which includes areas have a wastage of greater than 75% of the allowable margin) require further thickness and an extended close up survey. |
Examination should be sufficient to discover corrosion, significant deformation, fracture, Dam-ages etc. |
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Enhanced survey carried out
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It covers all cargo spaces, ballast tanks, tunnel, cofferdam, void space, deck & outer hull. |
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After survey the administrator will give an endorsed condition evolution report to the owner n a copy to be placed on board. |
Thickness measurement report. | |
Survey report | |
Executive hull summary. |
Updated: 03-Nov-2007