Based on flight data in 2020, the large number of aircraft accidents that occurred during the last five years was caused by human factors, so this is one of the basis of research. The study was conducted with a total of 547 cabin crew from national aviation companies at Soekarno-Hatta International Airport Jakarta. The data was collected through instruments on the questionnaire whose results were changed based on the Likert scale and tested first before data analysis was carried out using the Partial Least Square-Structural Equation Modeling (PLS-SEM) method. The results showed that safety attitudes mediate the relationship of proactive personality with safety behavior, which means that the safety attitude created by aviation companies indirectly has an impact on the relationship of proactive personality to safety behavior. Then the safety climate is able to moderate the relationship of proactive personality with safety behavior negatively, this means that the safety climate negatively influences proactive personality and safety behavior.

Keywords : Safety Attitude, Proactive Personality, Safety Behavior, Safety Climate.