Fault Location, Isolation, and Service Restoration (FLISR) is one of the Distribution Automation (DA) tools that optimize operators to identify faults and power switch automation. It aims to mitigate the number of customers interrupted by the outage. The implementation of FLISR generates a distribution automation system that coordinates the operation of tools, software, and special communication network. It automatically locates faults and quickly reconfigures power flow to reduce the outage duration and the numbers of customers interrupted by the outage. FLISR depends on rerouting ability. Thus, it needs data associated with accurate network configuration, real-time network operation mode, optimization algorithm in restoration system, and environment to enable remote switching. In accordance with Standard guidelines for electricity distribution, the reliability index is used as the standard to examine the service quality of electrical distribution. Two parameters used in the evaluation of FLISR operation are the number of customers interrupted (CI) and customer minutes of interruption (CMI). Both parameters are equation components used to calculate SAIFI and SAIDI. FLISR cannot prevent outages but can mitigate the impact of faults on customers.