TYPES OF SURVEYS

ANNUAL SURVEY:-
              It is carried out 3 months before or after each anniversary date of completion, commissioning or special survey. Purpose of annual survey is to do the general inspection of items in relation to particular certificate. General inspections of items are done to determine if they are maintained in good condition so that they can fulfill the functional requirements for which they are installed on the vessel.

INTERMEDIATE SURVEY:-
              It is held halfway approximately between special surveys. The window period for intermediate survey is plus or minus 6 months. So, they are carried out on all ships, instead of either second or third annual survey. Ultrasonic thickness gauging is done to find out whether plates are within limit, where necessary surveyor attends gauging. The survey consists of general examination of hull,machinery equipment ,fire fighting equipment etc. and detailed examination of a certain part of them.

RENEWAL SURVEY:-
              A renewal survey is carried out within a window period of  plus or minus 3 months of the 5th anniversary date. It involves a thorough inspection of hull, machinery and equipment to confirm the structural integrity and fitness for intended purpose until next special survey. This survey is carried out in dry dock and includes survey of side shell and bottom plating, sea chest, sea suction, tail shaft, propeller and propeller shaft , rudder, anchor, anchor chain and mooring equipment. Following satisfactory renewal, the certificate of class is renewed for a period of 5 years subject to annual and/or intermediate survey.

DAMAGE SURVEY:-
             A damage survey is performed to access the extent of damage sustained, to compile a list of recommended repairs and estimated cost to return the vessel to its condition before the incident. A damage survey is required by insurance companies when a claim has been submitted. It is part of a claim investigation to establish the probable cause and extent of damage.

REPAIR SURVEY:-
             Following repairs, a survey is again conducted in which a surveyor again assesses the status of the vessel to ascertain if she has been restored to a condition meeting requirement. Temporary repairs may be permitted by issuance of an appropriate recommendation or condition of class. Where repairs are carried out at a place where the surveyor services are not available, survey must be carried out at the earliest opportunity there after.

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