Relationship Analysis of Air Traffic Services System Reliability and Controller Performance at Upper Natuna JATSC

Agus Arrouf (Air Traffic Control Study Programme/ Applied Undergraduate Programme Indonesian Aviation Polytechnic of Curug)
Lina Rosmayanti (Air Traffic Control Study Programme/ Applied Undergraduate Programme Indonesian Aviation Polytechnic of Curug)
Ichyu Machmiyana (Air Traffic Control Study Programme/ Applied Undergraduate Programme Indonesian Aviation Polytechnic of Curug)

International Journal of Humanities Education and Social Sciences
Vol 5 No 5 (2026): IJHESS APRIL 2026

This study aims to analyze the factors influencing the level of ICAO English language proficiency among Air Traffic Controllers (ATCs) at Jakarta Air Traffic Service Centre (JATSC). English proficiency is a critical requirement to ensure effective communication, safety, and efficiency in air traffic operations as mandated by the International Civil Aviation Organization (ICAO). This research employs a quantitative approach with a causal associative design. Data were collected through structured questionnaires distributed to 92 active ATCs at JATSC. The independent variables examined include frequency of English usage, work experience, English language training, and learning motivation, while ICAO English proficiency serves as the dependent variable. The data were analyzed using descriptive statistics and multiple linear regression analysis to identify both partial and simultaneous effects of the independent variables. The results show that all examined factors significantly influence ICAO English proficiency, both individually and collectively.