PENGARUH KEGAGALAN CARGO VALVE SEAT RING TERHADAP EFISIENSI BONGKAR MUAT DI MT. KUANG

Abstract

This study aims to determine the effect of cargo valve seat ring failure on cargo discharge efficiency aboard MT. Kuang and to measure the magnitude of its influence. The research problem originates from seat ring damage that causes leakage in the cargo pipeline system, allowing air to enter the cargo oil pump system and disrupting cargo discharge operations. This study employed a quantitative research method using a survey approach. Data were collected through field observations, documentation, and questionnaires distributed to crew members involved in cargo handling operations. The data were analyzed using descriptive statistics, validity and reliability tests, correlation analysis, coefficient of determination, simple linear regression, and hypothesis testing. The results indicate that cargo valve seat ring failure has a significant effect on cargo discharge efficiency aboard MT. Kuang. Damaged seat rings, inadequate maintenance programs, and limited crew capability in detecting early signs of damage were identified as the main contributing factors. These conditions disrupt cargo flow, reduce cargo oil pump performance, prolong discharge operations, and decrease overall operational efficiency. Therefore, improvements in preventive maintenance, routine inspections, and crew training are essential to minimize the risk of cargo valve seat ring failure and enhance cargo discharge efficiency aboard MT. Kuang.