Periodic surveys on ships | Various types of surveys on ships | Merchant navy knowledge

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Periodic surveys on ships | Various types of surveys on ships | Merchant navy knowledge
periodic surveys on ships,
periodical survey,
survey on ship,
class survey on ship,
special survey of ship,
ship surveys
Periodical Survey
A Periodical survey of a ship is the practice of inspecting a ship periodically to ensure it is seaworthy and compliant with all regulations.
It involves the inspection of the items relating to the particular certificate to ensure that they are in satisfactory condition and fit for the service for which the ship is intended.
These surveys are typically conducted by third-party organizations on behalf of the ship’s owner or operator.
Renewal Survey
Renewals surveys are conducted every five years and are required in order to renew the vessel’s certificate of documentation. The survey includes a hull and machinery inspection, as well as an examination of the vessel’s cargo gear and other equipment.
The purpose of the survey is to ensure that the vessel is fit for its intended purpose and that it meets all applicable safety standards. The renewal survey process is as per the periodical survey but leads to the issue of a new certificate.
Intermediate Survey
An intermediate survey is carried out during the half-year validity of the certificate. The purpose of an intermediate survey is to ensure that the vessel is still in compliance with all the applicable regulations and that it is safe to continue operating.
During an intermediate survey a number of specified items. will be thoroughly examined by the surveyors. They will check all the critical systems and components of the vessel, as well as its overall condition.
Annual Survey
An annual survey is an inspection that is carried out once a year on a ship. This inspection is carried out to ensure that the ship is in compliance with all the necessary safety regulations. The survey covers a wide range of items, from the condition of the hull to the functioning of the engine. It involves a general inspection of the items relating to the particular certificate to ensure that they have been maintained and remain satisfactory for the service for which the ship is intended.
Additional Survey
Special surveys are inspections, either general or partial according to the circumstances, to be made after a repair resulting from casualty investigations or whenever any important repairs or renewals are made. They are inspections that are conducted to ensure that the vessel is safe and fit for operation.
Special surveys can typically also be required for vessels over 20 years old, deemed to be high-risk, or have a history of accidents or incidents. During a special survey, the surveyor will conduct a thorough examination of the vessel. This will include an inspection of the hull, superstructure, machinery, and equipment. The surveyor might also interview the crew and review the vessel’s maintenance records.
The Harmonized System of Ship Survey.
In order to cover the survey and certification requirements of SOLAS, 1974, the Loadline Convention, 1966, MARPOL 73/78, the IBC Code, the Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (BCH Code), and the Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk, (IGC Code)., the IMO established the “Harmonized System of Surveys and Certification” (IMO Resolution A746 (18)) on February 3, 2000
The harmonized system offers the following:
a standard survey interval of one year based on initial, annual, intermediate, periodic, and renewal surveys as necessary;
a plan for allowing the necessary flexibility for the execution of each survey, with the proviso that the renewal survey may be finished within three months of the current certificate’s expiration date without reducing the validity of the certificate;
a five-year maximum validity period for all certificates for cargo ships;
a Passenger Ship Safety Certificate with a maximum validity duration of 12 months;
a procedure enabling certificates to be extended for a maximum of three months (or one month for ships on short journeys) to allow a ship to complete its journey;
After an extension has been granted, the new certificate’s validity period will begin on the date that the old certificate would have expired without the extension.
Current Survey Practices
The ship’s inspection system currently has several participants and consists of a mandatory part (statutory and class) and a non-mandatory part (industry-driven). The mandatory part, based on the international legal framework which was normally to be enforced by the flag and Port states, is nowadays more and more being performed by recognized organizations.