Aviation fuel demand in Maluku - Papua area experienced a significant increase of 9.6% per year over the course of 2012-2018. However, this increase was not accompanied by the development of infrastructure, it was observed that the average coverage day was as low as 6.9 days. According to fuel terminal design standards there are several classes of fuel terminal based on DOT, Coverage Days, number of tanks, and the type of tank. Based on pareto diagram, the determined problem for Aviation Fuel Terminal Tual is "Low Average Coverage Day in the Aviation Fuel Terminal Tual (<7 Days)" and the alternative solution chosen is Modular Aviation Fuel Terminal System. There are several main materials in said system, namely storage tanks (23 KL), pumps (70 KL / hour), vessel filter, and flow meter. Material specifications are specified through hydraulic and tank design calculation. And obtained by installing Modular Fuel Aviation System in Aviation Fuel Terminal Tual, there was an increase in Coverage day and value creation of 4.17 billion Rupiah