Industrial engineering plays an important role in improving aircraft maintenance operations by organizing resources, time, and technical personnel. This helps reduce the time aircraft spend on the ground and return them to service as quickly as possible while maintaining the highest standards of safety and quality. Industrial engineering relies on analyzing work procedures, identifying sources of delays, and improving the flow of materials, equipment, and spare parts required for scheduled maintenance. Efficient maintenance begins with advance planning of inspection and servicing schedules according to flight hours, manufacturer requirements, and applicable regulations. Ensuring that spare parts and appropriate tools are available before an aircraft arrives at the maintenance facility helps prevent delays caused by material shortages or unavailable equipment. Coordination among engineers, technicians, supply teams, and management also contributes to effective task allocation and reduces waiting periods between different stages of maintenance. Industrial engineering tools, such as resource planning, time and motion studies, inventory management, and workflow charts, are used to identify tasks that can be performed simultaneously without compromising safety or maintenance quality. For example, preparing the necessary tools, technical documents, and spare parts before an inspection begins can reduce unproductive time and make maintenance procedures more organized. Digital maintenance management systems also help monitor aircraft status, document completed work, and accurately identify future requirements. Another important aspect is the use of performance indicators, such as maintenance completion time, aircraft availability rates, and the number of delays caused by spare-part shortages. These indicators enable management to evaluate operational efficiency, identify recurring problems, and implement appropriate corrective actions. However, reducing the time an aircraft spends on the ground does not mean shortening essential inspections or bypassing approved procedures. Instead, it involves making the best use of time and resources while strictly complying with safety requirements. The integration of industrial planning, supply chain management, and digital technologies contributes to improving aircraft reliability, increasing airline operational efficiency, and reducing operating costs. By organizing maintenance activities, anticipating requirements, and addressing the causes of delays, industrial engineering can support operational continuity and enhance fleet readiness, achieving a balance between timely maintenance and aviation safety. Assist. Lecturer Mohammed Haider Shaheed