Product Reject Analysis of 40d-H2103-00 Terminal Motorcycle Spare Parts Using Statistical Quality Control Methods at CV Biru Karya Pratama

CV Biru Karya Pratama is a company engaged in manufacturing that produces Terminal 40D-H2103-00. The problem found at CV Biru Karya Pratama is related to the number of rejects found every month which affects the results that do not reach the target. This study uses the Statistical Quality Control method where based on the calculation results there are 5 data within the control limits and 7 data outside the control limits with 3 data below the LCL and 4 data above the UCL on the P-Chart. This shows the need for more effective and efficient quality control improvement proposals. After conducting a fishbone analysis, the proposed improvements are implementing Standard Operating Procedures (SOPs), training employees and operators, conducting supervision during the production process, and conducting regular performance audits.