US Class I Rail Process Wiki Mechanical & Rolling Stock › Condition-Based Maintenance & Equipment Health Alerts
🗺 BPMN Process Flow
RR-05-06-02 BPMN Diagram

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📋 Process Attributes
Process IDRR-05-06-02
Domain FamilyOPERATIONS
L1 DomainMechanical & Rolling Stock
L2 Process GroupCondition-Based Maintenance & Equipment Health Alerts
TriggerDetection of a hot bearing, wheel impact, or acoustic anomaly by the wayside defect detector network.
OutcomeA locomotive is either repaired or replaced, ensuring it meets safety standards and operational requirements.
SystemsWayside defect detector network EHMS NetControl Downing B. Jenks Shop North Platte, NE locomotive shop Proviso Locomotive Shop West Colton Yard and Shops
Regulatory Hooks49 CFR Part 231 49 CFR Part 229 AAR Interchange Rules (Rule 88 and related)
📋 L4 Process Steps
StepNameRoleSystem InputOutputKPIPain Point / Risk Decision?Exception?
1.1 Detect Anomaly Service Operator Wayside defect detector network Sensor data from wayside detectors Alert to maintenance team Time to detect anomaly < 5 minutes False positives leading to unnecessary inspections N N
1.2 Initial Assessment Electrician (locomotive) EHMS Alert from wayside detector network Assessment report Time to initial assessment < 30 minutes Inaccurate data interpretation Y N
1.3 Prioritize Repair Manager-Locomotive Maintenance NetControl Assessment report Repair priority list Time to prioritize repair < 1 hour Resource allocation issues Y N
1.4 Dispatch Repair Crew Train Dispatcher NetControl Repair priority list Dispatch order Time to dispatch repair crew < 2 hours Crew availability and scheduling conflicts N Y
1.5 Locomotive Inspection Electrician (locomotive) Wabtec Modular Control Architecture Dispatch order Inspection report Time to complete inspection < 4 hours Detailed inspection procedures Y N
1.6 Repair or Replace Machinist Downing B. Jenks Shop, North Platte, NE locomotive shop, Proviso Locomotive Shop, West Colton Yard and Shops Inspection report Completed repair or replacement order Time to complete repair < 24 hours Access to spare parts Y Y
1.7 Quality Control Electrician (locomotive) EHMS Completed repair or replacement order QC report Time to complete QC < 2 hours Consistent quality standards N Y
1.8 Return to Service Train Dispatcher NetControl QC report Service order Time to return to service < 3 hours Integration with operational schedules N Y
1.9 Update Records Manager-Mechanical Maintenance Umler, EHMS Service order Updated maintenance records Time to update records < 1 hour Data entry errors N N
1.10 Review and Improve Senior Director-System Locomotive Facility EHMS, TRAIN II Updated maintenance records Improvement plan Time to review and improve < 1 week Continuous improvement processes Y N
📊 KPIs & Risk Register

KPIs

Time to detect anomaly < 5 minutes Time to initial assessment < 30 minutes Time to prioritize repair < 1 hour Time to dispatch repair crew < 2 hours Time to complete inspection < 4 hours Time to complete repair < 24 hours Time to complete QC < 2 hours Time to return to service < 3 hours Time to update records < 1 hour Time to review and improve < 1 week

Key Risks

Safety risk due to undetected faults after repair Service disruption from prolonged locomotive downtime Commercial impact from delayed train schedules Regulatory non-compliance with maintenance standards Operational inefficiency from inadequate resource allocation

Swim Lanes

Service Operator · 1.1 Electrician (locomotive) · 1.2, 1.5, 1.7 Manager-Locomotive Maintenance · 1.3 Train Dispatcher · 1.4, 1.8 Machinist · 1.6 Manager-Mechanical Maintenance · 1.9 Senior Director-System Locomotive Facility · 1.10