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june 2015 FOGHORN 17 Oshore support vessels Passenger ferries Naval Military vessels regulatoryReport By Peter Lauridsen PVA Regulatory Affairs Consultant H auling a vessel is one of those inspection events that is planned early and in great detail. It usually means setting aside a fixed block of time early in the vessels schedule and often when the period is used for upgrades or extensive main- tenance substantial costs. Even just the internalexternal examination sea valves and tail shaft can be a sig- nificant undertaking when looking at time and costs. What happens when even the best plan runs up against a problem often unexpected and often late in the commitment period. These past few years have presented owners with uncontrolled weather-induced environmental problems of flooding and extensive and long lasting ice conditions. These conditions can and do cause direct and indirect problems in meeting inspection commitments when the vessel cannot move or the repair facilities are themselves adversely impacted. More than one PVA member has had the challenge of delayed inac- cessible or cancelled drydock avail- abilities recently. This is a periodic inspection of great importance to the vessel and Coast Guard. It is much like the overall health examinations of humans. It takes time to do a com- prehensive examination of a vessels health and prognosis for continued service. The out-of-water opportu- nity brings with it the ability to thor- oughly examine the internal and external structure examine propul- sion steering and cathodic protec- tion systems and see the condition of through hull fittings. Implicit in the examination is an assessment of the vessels condition as it relates to Drydock Inspection Extensions