Define and Maintain Repair Structure Associate Repair Codes, Discrepancy Codes and Modification Headers Attach Maintenance Levels and Structures to Routings Attach Repair Codes to Structures and Routings Define MRO Manufacturing Operational Data Define and Maintain Repair Routing MRO Manufacturing Operational Data Product Structures Planning Structures Recipe Structures Configuration Structures Define and Maintain Maintenance Level Routing Define and Maintain Maintenance Level Structure Routings