The purpose of this study is to determine the effectiveness and productivity of Quay Container Crane (QCC) work through the value of OEE (availability, performance, quality) and identify losses affecting the OEE value of QCC. The method used includes collecting, compiling, classifying and analysing data and information about the effectiveness and productivity of Quay Container Crane. The results of the OEE are analysed using the six big losses method to find the loss factor, root cause analysis using the Fishbone diagram and make improvement recommendations using the 5 why analysis method. Based on the research results, the OEE value of Quay Container Crane affected by the loss factor which are reduce speed losses and breakdown losses. Improvement efforts by eliminating six main loss factors in relation to increasing the effectiveness and productivity of Quay Container Crane (QCC) were proposed.

Keywords : oee, quay container crane, six big losses, fishbone, productivity.