1. Hull inspection and repair: The ship’s hull is thoroughly inspected for damage, corrosion, and other structural issues. Any necessary repairs or maintenance work, such as painting, welding, or replacement of damaged sections, are carried out.
   
   
2. Propeller and shaft maintenance: The ship’s propeller and propulsion system are inspected, cleaned, and repaired if necessary. This may involve removing the propeller for inspection, balancing, or repairs to the shaft.
   
   
3. Cleaning and maintenance of underwater components: The ship’s underwater components, such as sea chests, sea valves, and sea strainers, are cleaned and inspected. Any fouling or blockages are removed, and necessary repairs or replacements are undertaken.
   
   
4. Tank inspections: Various tanks on the ship, such as fuel tanks, ballast tanks, and cargo holds, are inspected for integrity and cleanliness. Repairs, cleaning, and maintenance work are carried out as required.
   
   
5. Mechanical and electrical system checks: The ship’s mechanical and electrical systems, including engines, generators, pumps, and auxiliary equipment, are inspected, serviced, and repaired if needed.
   
   
6. Safety and regulatory compliance: Drydocking provides an opportunity to ensure the ship meets safety standards and regulatory requirements. Safety equipment, such as lifeboats, fire suppression systems, and navigation lights, are inspected and tested. Necessary upgrades or replacements are made to comply with regulations.
   
   
7. Miscellaneous services: Drydocking may also include additional services such as retrofitting new equipment, modifications to accommodate new technologies, installation of environmental protection systems, or any other specific requirements of the shipowner.

Ship drydocking is a complex and specialized process that requires skilled personnel, extensive planning, and the use of appropriate equipment and facilities. It is typically carried out in shipyards or specialized drydocking facilities capable of accommodating different types and sizes of vessels. Shipowners and operators often collaborate with ship repair and maintenance companies or shipyards to ensure a smooth drydocking process and timely completion of necessary works.