ANALISIS RISIKO OPERASIONAL PERAWATAN BERKALA PADA AUXILIARY ENGINE UNTUK MENGURANGI PENINNGKATAN BIAYA OVERHAUL DENGAN METODE FMEA DAN FTA

Abstract

Delivering the efficiency and effectiveness of operations in the Auxiliary Engine system, it is essential to improve the quality of planning, scheduling, and maintenance management, particularly during General Overhaul activities. Every maintenance process inevitably carries potential risks that may affect the continuity of ship operations. Therefore, this study was conducted to identify, analyze, and anticipate the risks that may arise during the maintenance of the Auxiliary Engine, as well as to propose appropriate mitigation strategies. The methodology applied combines Failure Mode and Effect Analysis (FMEA), which is used to determine the level of risk based on the Risk Priority Number (RPN), and Fault Tree Analysis (FTA), which is applied to investigate the root causes of priority risks. The results of the FMEA identified 15 sub-risks across several categories, with 6 of them classified as priority risks. These priority risks were then further examined using FTA to provide a clearer understanding of their root causes. Finally, this research proposes risk mitigation strategies that can minimize potential impacts and prevent recurring failures during the General Overhaul process of the Auxiliary Engine.