CR-2025-0047 — PTC Onboard Computer Firmware Update
Firmware Update • Department: PTC
Under Review
Related Asset: 71-456
Overview
Change Request ID
CR-2025-0047
Department
PTC
Workflow Type
Firmware Update
Related Asset
71-456 (Onboard Computer)
GLPI Tickets
20250401; 20250428
Change Details
Description of Change
Update OBC firmware to version 2.3.1.
Justification
Corrects reported GPS drift and improves message handling performance for PTC onboard equipment.
Impacted Assets
EMU 101 OBC (Asset 71-456)
Planned Implementation Window
09/25/2025 – 09/26/2025
Rollback Plan
Restore prior firmware version 2.2.10 from VOB and validate communication with back office.
Workflow & Approvals
| Step | Action By | Status | Timestamp |
|---|---|---|---|
| Submitted | John Stone | Completed | 08/22/2025 09:26 AM |
| Supervisor Approval | Emily Harper | Completed | 08/22/2025 01:15 PM |
| CM Approval | Stephanie Sullivan | Pending | — |
| Implementation | — | Pending | — |
| Close-Out | — | Pending | — |
Attachments
| File Name | Type |
|---|---|
| CR-2025-0047-Implementation-Plan.pdf | Plan |
| OBSW-2.3.1-Release-Notes.pdf | Release Notes |
| Pre-Upgrade-PTC-Logs.zip | Logs |