<![CDATA[The turbocharger is a vital component of a ship's main engine, responsible for supplying pressurized scavenging air into the combustion chamber to optimize combustion performance. Operational issues with the main engine turbocharger on MV. Pekan Sampit led to a decline in engine performance. This study aims to identify the risk factors associated with sub-optimal turbocharger maintenance, evaluate their impact on main engine performance, and formulate mitigation strategies on MV. Pekan Sampit. A descriptive qualitative research method was employed, utilizing an integrated approach of the Fishbone Diagram and Failure Mode and Effects Analysis (FMEA). The results indicate that the primary risk factor originates from the Machine category (RPN 276.75) due to bushing and shaft wear, followed by Material (RPN 214.50) and Method (RPN 212.00) caused by fouling on the air filter/aftercooler and delays in the Planned Maintenance System (PMS). Consequently, these issues triggered a reduction in scavenge air pressure, incomplete combustion, an exhaust gas temperature (EGT) surge up to 460°C, and a drop in engine speed from 1,210 RPM to 1,140 RPM. Optimization efforts involve replacing worn components, cleaning the air filter and aftercooler, maintaining the seawater cooler, and strictly implementing the PMS along with daily monitoring.]]>
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