In the rapidly evolving aviation industry, the efficiency, safety, and compliance of airline maintenance operations are paramount. This paper explores the development and application of a Key Performance Indicator (KPI)-driven framework tailored for airline maintenance management. Through a comprehensive methodology encompassing a literature review, expert interviews, and data analysis, the study identifies critical KPIs across various dimensions of maintenance operations, including production planning and control, maintenance and quality control, inventory and supply chain management, cost management, operational efficiency, employee management and training, safety and compliance, and sustainability and environmental impact. Findings reveal that a KPIdriven approach significantly enhances operational efficiency, safety compliance, and cost optimization, supported by real-world case studies. The research contributes to both the theoretical understanding and practical application of KPIs in airline maintenance, offering a strategic tool for Chief Production Control Officers (CPCOs) to achieve operational excellence. The paper concludes with practical recommendations for implementing the KPI framework and suggests directions for future research, emphasizing the need for continuous innovation, adaptation, and strategic oversight in airline maintenance management.