Plan Line Maintenance Activities VIM Serial Structure VIM Serial Structure Conclude Maintenance Visit Work Order Perform Due Calculations Maintenance Order Operational Log Historical Data Modification Schedule Schedule Line Maintenance Activities Fleet Management Reports Maintenance Order Vehicle Operational Schedule Vehicle Operational Schedule Complete Maintenance Visit Maintenance Order Execute Line Maintenance Activities BDR for Tasks Maintain Serial Structure Maintenance Program Maintenance Program Complete Maintenance Task Error Log Maintenance Order Aviation Part Certificate Report VIM Serial Structure VIM Serial Structure Modification Program Modification Program