Inventory Control Strategy on High-Value Aviation Spares at Line Maintenance

Abstract

Line maintenance is very important guarantee for airlines operation, and maintenance quality is inseparable from the support of aviation spares. High-value aviation spares inventory usually accounts for a large proportion of airline’s fixed assets, whose turnover speed directly affect airlines profit. For the dynamic process of aviation spare inventory in line maintenance scenario, “high-value aviation spare purchasing—line maintenance consuming—high-value aviation spares inventory” is considered as generalized physical system, and engineering control strategy could be used to optimize inventory management. Based on actual aviation spare loss data during route maintenance process, typical statistical characteristics about the aviation spare data is analyzed and researched, and the linear inequality robust variance control theory is applied to design high-value aviation procurement strategy. Simulation of inventory optimization process is performed using MATLAB Simulink toolbox, and whose result shows that variance of inventory of high-value aviation spares are significantly reduced.