Management & Governance

Through the implementation of Heavy Maintenance Visits (HMV) and Line Maintenance, EVA Air enhances Aircraft Reliability and ensures the fleet remains in an optimal operational state. Rigorous evaluations and execution of Airworthiness Directives (AD) and Service Bulletins (SB) are conducted to ensure all maintenance measures comply with airworthiness requirements. All maintenance operations are executed in accordance with regulations, standard procedures, and quality management systems. Through multi-layered quality control and inspection mechanisms, potential risks are proactively identified and eliminated to maintain continuous aircraft airworthiness, laying a solid foundation for flight safety.
From component life limit management and maintenance procedure control to engineering quality monitoring, risk management and flight safety are comprehensively implemented. In addition, the Company has established management targets for fleet Dispatch Reliability and reviews dispatch reliability and the causes of aircraft delays at monthly Quality Management Committee meetings. Through data analysis, maintenance programs are adjusted as appropriate, preventive engineering measures are executed, and operational workflows are improved to minimize unexpected malfunctions and aircraft delays, thereby continuously enhancing fleet reliability and dispatch performance to deliver safe, reliable, and on-time flight services to passengers.

In accordance with its Reliability Control Program, EVA Air systematically collects and analyzes operational and maintenance data to optimize maintenance practices. The program establishes alert thresholds for aircraft abnormalities, enabling engineers across relevant disciplines to investigate events that exceed predefined limits and develop corrective actions for incorporation into the aircraft maintenance program. This approach helps maintain aircraft system reliability, enhance maintenance quality, and ensure flight safety.
Technical data and operational issues identified during routine aircraft operations are monitored under four categories: (1) aircraft systems, (2) aircraft components, (3) engines, and (4) airframe structures. EVA Air also convenes monthly Reliability Meetings and Quality Management Committee meetings to monitor, discuss, and continuously improve aircraft reliability, technical corrective and preventive actions, and human factor–related issues.

To effectively implement the Safety Management System (SMS) and measure and monitor maintenance safety performance, the Maintenance Division has established Safety Performance Indicators (SPIs) and Safety Performance Targets (SPTs). The Division also integrates the core principles of SMS—hazard identification and risk management—into employees' decision-making and daily operations to effectively identify, assess, and control operational risks in maintenance activities, thereby enhancing safety performance and improving overall safety outcomes.

EVA Air encourages innovation in aircraft maintenance by empowering employees to develop practical solutions that optimize maintenance processes, reduce resource consumption, and improve operational efficiency, thereby supporting the Company's sustainability objectives.
In 2025, EVA Air submitted its internally developed Electronic Flight Maintenance Log (e-LOG) to the Civil Aviation Administration (CAA) for certification. The system was officially approved and placed into service in the second quarter of 2026. By digitalizing maintenance records, e-LOG significantly reduces paper consumption, supports the Company's energy conservation and carbon reduction goals, enhances operational efficiency, and improves overall resource utilization.

EVA Air's Flight Dispatch Department operates a 24/7 flight dispatch and operations monitoring center to ensure the safe and efficient management of all flights. Through the Flight Information System (FIS) and Flight Trace System, the team continuously monitors aircraft positions, fuel status, and other operational information, while also maintaining around-the-clock surveillance of external factors such as airport activities and weather conditions.

All flight dispatchers responsible for preparing flight plans hold licenses issued by the Civil Aviation Administration (CAA). Supported by their professional expertise and advanced operational systems, they plan flight routes that prioritize safety, fuel efficiency, operational effectiveness, and passenger comfort.

EVA Air actively participates in the European Free Route Airspace Working Group, the FAA Cross Polar Working Group (CPWG), and the Informal Pacific Air Traffic Control Coordinating Group (IPACG) to improve operational efficiency and reduce fuel consumption by optimizing flight operations across Europe, North America, the Russian Far East (RFE), the North Pacific, and Japan.

Additionally, EVA Air is also a member of the Association of Asia Pacific Airlines (AAPA) and actively participates in its Environmental Working Group (EWG). Through regular participation in the annual EWG meetings, we collaborate with air traffic control agencies from various countries to develop routes that save fuel and reduce travel time. Thereby lowering greenhouse gas emissions and reducing the environmental impact of aviation operations.