Analisis Risiko Kegagalan Proyek Coating Oil Tank pada Perusahaan Fabrikasi-Konstruksi dengan Metode FMEA (Failure Mode and Effect Analysis)

Abstract

The fabrication-construction industry in Indonesia continues to grow rapidly, including in the Coating Oil Tank project undertaken by a company in Gresik, East Java. This project involves the welding of Steam Coil Pipes, which play a crucial role in maintaining the fluid temperature inside the tank. However, significant delays occurred due to welding defects such as incomplete penetration and porosity, detected through Radiography Tests. This study aims to identify potential failures in this project using the Failure Mode and Effect Analysis (FMEA) method and provide improvement recommendations based on priority levels. Failure risks were identified through interviews with relevant parties and a questionnaire filled out by experts, which were then analyzed based on categories of internal, external, human, and system risks. Each risk was assessed based on severity, occurrence, and detection to calculate the Risk Priority Number (RPN). The results revealed that system failure had the highest RPN at 666.19, while welding defects such as incomplete penetration and porosity had RPNs of 464.30 and 485.84, respectively. Recommendations to mitigate these risks include retraining operators, improving inspection quality, and adopting better welding techniques. This study's findings are expected to improve project performance and minimize similar failures in future projects.