Blockchain-driven framework for preventive maintenance management of aircraft hydraulic systems

Aviation plays a crucial role in global transportation, providing an essential service for passengers and cargo and contributing significantly to economic growth and international connectivity. However, the increasing number of aircraft accidents and high repair costs emphasize the need for robust maintenance systems. With mechanical failures accounting for 36% of aviation accidents, a secure and efficient preventive maintenance system is essential to enhance safety and reduce downtime. Traditional methods suffer from delayed inspections, fragmented documentation, and inefficiencies in spare parts management, leading to increased operational costs and downtime. This paper proposes a blockchain-based solution integrating Ethereum smart contracts, Time Oracles, and InterPlanetary File System (IPFS) to automate maintenance scheduling, ensure data integrity, and enhance traceability. Time Oracles trigger maintenance at predefined intervals, ensuring timely inspections, while IPFS securely stores maintenance records, preventing data loss or tampering. Smart contracts automate maintenance workflows and spare parts procurement, improving efficiency and accountability. This paper details the system architecture, underlying algorithms, and rigorous testing and validation processes. Furthermore, a cost and security analysis evaluates the solution’s effectiveness, demonstrating its potential to significantly enhance safety, reduce operational costs, and improve transparency across aviation maintenance protocols.