One practical solution in prioritizing which maintenance improvement initiative to undertake is by using Pareto analysis. This has also been advocated for, as one tool (of many), to use within maintenance by many maintenance research practitioners. However, there are some drawbacks and potential sources of errors if not being cautious. The main objective of this research is to develop and test a tool to be utilized for prioritization purposes of maintenance improvement initiatives. The purpose of the paper is to exemplify, from an industrial case, some of the strengths and weaknesses of this approach.