RR-05 RR-05-01-02 — Locomotive Running Repair & Servicing
This process involves the running repair and servicing of locomotives to ensure they are safe, reliable, and ready for operation on the mainline.
🗺 BPMN Process Flow
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📋 Process Attributes
| Process ID | RR-05-01-02 |
|---|---|
| Domain Family | OPERATIONS |
| L1 Domain | Mechanical & Rolling Stock |
| L2 Process Group | Locomotive Running Repair & Servicing |
| Trigger | Detection of a hot bearing or wheel impact by the wayside defect detector network, or scheduled maintenance cycle. |
| Outcome | A fully repaired and serviced locomotive is returned to service with all systems operational and compliant with regulatory standards. |
| Systems | Wayside defect detector network Umler NetControl EHMS I-ETMS Wabtec Modular Control Architecture |
| Regulatory Hooks | 49 CFR Part 232 49 CFR Part 215 AAR Interchange Rules (Rule 88 and related) |
📋 L4 Process Steps
| Step | Name | Role | System | Input | Output | KPI | Pain Point / Risk | Decision? | Exception? |
|---|---|---|---|---|---|---|---|---|---|
| 1.1 | Defect Detection Notification | Train Dispatcher | Wayside defect detector network | Hot bearing or wheel impact detection data | Defect report to the locomotive shop | Time from detection to notification < 10 minutes | Delayed notification leading to increased risk of derailment | N | Y |
| 1.2 | Initial Assessment | Service Operator | Umler | Defect report | Assessment and prioritization of repair tasks | Time to complete assessment < 30 minutes | Inaccurate assessment leading to incomplete repairs | Y | N |
| 1.3 | Locomotive Removal from Service | Train Dispatcher | NetControl | Assessment and prioritization of repair tasks | Service order to remove locomotive from service | Time to remove locomotive < 1 hour | Delayed removal leading to operational disruptions | N | Y |
| 1.4 | Locomotive Arrival at Shop | Service Operator | NetControl | Service order | Confirmation of locomotive arrival | Time to arrive at shop < 2 hours | Late arrival delaying repair process | N | Y |
| 1.5 | Initial Inspection and Diagnostics | Electrician (locomotive) | EHMS | Confirmation of locomotive arrival | Detailed inspection report | Time to complete initial inspection < 4 hours | Missed issues leading to further damage | Y | N |
| 1.6 | Repair Planning and Scheduling | Manager-Locomotive Maintenance | Umler | Detailed inspection report | Repair plan and schedule | Time to complete repair planning < 6 hours | Inefficient scheduling leading to delays | Y | N |
| 1.7 | Component Replacement and Repair | Machinist | Wabtec Modular Control Architecture | Repair plan and schedule | Repaired locomotive components | Time to complete component replacement < 8 hours | Substandard repairs leading to rework | Y | N |
| 1.8 | Final Inspection and Testing | Electrician (locomotive) | EHMS | Repaired locomotive components | Final inspection report | Time to complete final inspection < 2 hours | Missed issues leading to rework | Y | N |
| 1.9 | Air Brake Test | Electrician (locomotive) | I-ETMS | Final inspection report | Air brake test results | Pass rate of air brake tests > 95% | Failed air brake test leading to locomotive being returned to shop | Y | Y |
| 1.10 | Return to Service | Train Dispatcher | NetControl | Air brake test results | Service order to return locomotive to service | Time to return to service < 1 hour | Delayed return leading to operational disruptions | N | Y |
| 1.11 | Post-Service Monitoring | Electrician (locomotive) | EHMS | Service order to return locomotive to service | Monitoring report | Number of post-service failures < 1% | Post-service failures leading to additional repairs | Y | N |
| 1.12 | Continuous Improvement | Senior Manager-Mechanical Engineering | Umler | Monitoring report | Improvement plan | Number of process improvements > 3 per month | Lack of continuous improvement leading to inefficiencies | Y | N |
📊 KPIs & Risk Register
KPIs
Time from detection to notification < 10 minutes Time to complete assessment < 30 minutes Time to remove locomotive < 1 hour Time to arrive at shop < 2 hours Time to complete initial inspection < 4 hours Time to complete repair planning < 6 hours Time to complete component replacement < 8 hours Time to complete final inspection < 2 hours Pass rate of air brake tests > 95% Time to return to service < 1 hour Number of post-service failures < 1% Number of process improvements > 3 per month
Key Risks
Air brake test defect released to the road Delayed repair causing operational disruptions Substandard repairs leading to rework Failed air brake test leading to locomotive being returned to shop Lack of continuous improvement leading to inefficiencies
Swim Lanes
Train Dispatcher · 1.1, 1.3, 1.10 Service Operator · 1.2, 1.4 Electrician (locomotive) · 1.5, 1.8, 1.9 Machinist · 1.7 Manager-Locomotive Maintenance · 1.6 Senior Manager-Mechanical Engineering · 1.12