Overview of Sewage Treatment Plant on Ships Sewage Treatment Plants (STPs) are crucial systems on ships for processing and treating wastewater before discharge. Proper maintenance and regular checks are essential for ensuring the STP’s efficient operation, compliance with environmental regulations, and prevention of system failures. Routine Checks and Maintenance Daily Checks System pressure: Verify it’s […]
Inclining Test It is an experiment performed on a ship to determine its: Stability (GM) Vertical centre of gravity (KG) Light ship weight (Displacement) The metacentric height (GM) of a ship plays a vital role in setting loading capacity & stability of ship. The initial metacentric height can be estimated from its design. But the […]
5-Yearly Statutory Certificates These certificates are typically valid for 5 years, subject to annual, intermediate, and renewal surveys as required by the respective conventions and codes. It’s important to note that some certificates may have different validity periods or survey requirements depending on the specific regulations and the flag state’s requirements. Certificate Applicability Purpose Cargo […]
Drydocking Preparation and Procedure for Chief Engineers Pre-Drydock Planning (3-6 months before) Review classification society requirements and survey status Identify due surveys and inspections Note any outstanding conditions of class Prepare comprehensive repair specification Review previous drydock reports Compile defect list from ship staff reports Include planned maintenance items Add statutory/class requirements Coordinate with superintendent […]
Load Line Convention: Position 1 and Position 2 The diagrams illustrate the concept of “Position 1” and “Position 2” as defined by the International Load Line Convention. These positions are crucial in determining the structural and safety requirements for different parts of a ship’s deck. Explanation of Positions Position 1: This is the area of […]
Emergency Generator Connection Failures During Main Power Loss Emergency generators are a critical backup power source on ships, designed to automatically start and connect to the emergency switchboard within 45 seconds of detecting a main power failure. However, there are several potential reasons why an emergency generator may fail to connect properly during an actual […]
Switchboard Safeties onboard Ships The main switchboard (MSB) on a ship is a critical component of the electrical power distribution system. To ensure safe and reliable operation, various safety devices and measures are implemented. Here are the key switchboard safeties and their functions: Electrical Safety Devices Circuit Breakers Circuit breakers are automatic shutdown devices that […]
Criminal Penalties for Maritime Accidents and Pollution In the maritime industry, ships involved in accidents or pollution can face severe criminal penalties. These penalties vary by jurisdiction but generally show a trend towards stricter enforcement and harsher punishments for environmental violations. Key Points on Criminal Liability Criminal liability can be imposed for pollution from maritime […]
Concentrated Inspection Campaign (CIC) 2024: Crew Wages and Seafarer Employment Agreements The maritime industry is preparing for the upcoming Concentrated Inspection Campaign (CIC) in 2024, focusing on “Crew Wages and Seafarer Employment Agreements under MLC” (Maritime Labour Convention). This comprehensive guide provides essential information for shipowners, managers, and crew members to ensure compliance and avoid […]
Steering Gear Failure on Ships Common Causes Oil leakages due to worn seals or gaskets Mismatched rudder angles from improper control mechanism adjustments Failure of transmission systems between bridge and steering gear Breakdown of electrical or hydraulic power supply systems Aft-end vibrations loosening control system components over time Inefficient maintenance leading to system deterioration Indications […]