Abstract
This article examines the level of use of the state language in the civil aviation sector of the Republic of Kazakhstan and identifies the main linguistic challenges affecting its further development and functional expansion. The relevance of the study is determined by the close relationship between language communication in civil aviation and flight safety, professional mutual understanding, the quality of passenger services, and the implementation of state language policy. The article analyzes the specific features of Kazakh language use in airports, airlines, aviation enterprises, and passenger service units. Particular attention is paid to assessing the use of the state language in oral and written communication, information materials, document management, information and inquiry services, and professional training. The study also addresses the standardization of aviation terminology, the availability of educational and methodological materials in Kazakh, translation quality, language competence, and communication difficulties in a multilingual environment. The findings may provide a basis for developing recommendations aimed at expanding the use of the state language, improving aviation terminology, systematizing language standards, and enhancing the professional language training of civil aviation personnel. The article emphasizes the importance of comprehensive monitoring of the language situation and the introduction of practical mechanisms for evaluating the effectiveness of Kazakh language use in the aviation industry.