Aftersales service/support has always been a key factor for a company’s business development, growth, and a fair advantage to its competitors. In line with this, the project management must be strong and reliable. Problems faced by the project management are fast changing service locations, parts supply delays, manpower shortages and immediate client support/response. The study aims to pin-point, discuss and systematically solve these problems by using historical data analysis, root-cause analysis and failure, modes, effects analysis. Identifying the most suitable project management tools and approaches to improve the management process quality – thus, increasing the competence of the aftersales service the organization can offer. Providing good supply chain forecasting, efficient workload scheduling and proficient problem identification and categorizing. Results of the study aims to provide the organization with a solid system process that can be applied on a larger scale – handling of a fleet with no less than 30 vessels, ranging from 15 meters to 100 meters in length, located and assigned around the Philippines from the most remote locations to highly accessible areas.