<![CDATA[Airport security is a critical national infrastructure highly vulnerable to acts of unlawful interference. Drawing on the Resource-Based View (RBV) theory, the reliability of airport security depends on the strategic integration between human asset capabilities and physical security assets. This study was conducted at Halim Perdanakusuma International Airport, Jakarta, which holds a strategic role as a national vital object in the capital. Objective: To analyze the direct impact of Aviation Security (AVSEC) personnel competence and security facilities on aviation security, as well as testing the mediating effect of security facilities. Method: This quantitative study involved a population of 130 AVSEC staff at Halim Perdanakusuma Airport, with a sample of 98 respondents selected via probability sampling. Data analysis was executed using Structural Equation Modeling - Partial Least Squares (SEM-PLS). Results: AVSEC Personnel Competence has a very strong and significant direct impact on Security Facilities (beta = 0.889, T = 41.556, p = 0.000) and Aviation Security (beta = 0.708, T = 5.609, p = 0.000). Security Facilities significantly influence Aviation Security (beta = 0.252, T = 1.929, p = 0.054) at the 10% significance level. The mediating effect of Security Facilities is also partially significant (beta = 0.224, T = 1.923, p = 0.054). The structural model exhibits exceptional explanatory power, explaining 88.2% of the variance in Aviation Security (R² = 0.882). Conclusion: Personnel competence acts as the primary driver that optimizes the utility of physical security facilities to ensure sustainable civil aviation safety.]]>
