In Indonesia, the number of work accidents is still relatively high. One of the efforts in minimizing the number of work accidents is by applying a culture of 5R. 5R culture can be applied in all types of industries to improve the quality of safety and quality, therefore the implementation of 5R culture is very important for all industrial workers. The purpose of this study is to find out the level of quality of 5R implementation conducted by workers using PDCA (Plan-Do-Check-Act) and RCA (Root-Cause-Analysis) approach. The method of data collection used is a questionnaire with a total of 40 respondents who are all workers of PT. GMF AeroAsia Tbk. The results of the study with the Likert scale index show that most of the attributes are well-category and there are 2 priority attributes. This indicates that there is still a slight deficiency in the application of 5R in the work. The final results of the study produced 2 recommendations of improvements formulated from the root of the problem obtained from the analysis of why analysis on priority attributes. Furthermore, from the implementation of improvement recommendations, an increase in the Likert scale index on the priority attribute shows the improvement of 5R quality in the working environment of PT GMF AeroAsia Tbk.

Keywords : 5R, PDCA, RCA, Likert Scale Index, , Why Why Analysis.