LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Recently Replaced Light

Sensor Verdict: The LCM issued an alert on the YELLOW (Left Turn) circuit for trailer V506633 at site RFD3. Based on the available work order data, the sensor result is classified as Inconclusive with a confidence of 35%. The technician ultimately reported no defect found and claimed all circuits were verified through the PCT TechAssist app. However, the tightening of terminals at the Smart 7 nosebox suggests there may have been a marginal or intermittent connection issue that could have caused the original alert — a finding that would represent a legitimate, if minor, wiring/connector anomaly. Without supporting photo evidence or a TechAssist screenshot, it is impossible to fully validate or dismiss the sensor's trigger.

Photo Evidence: No photos appear to have been attached to this work order for review. The technician's notes reference taking 'all related photos,' but none are present in the data provided for analysis. Specifically, there are no photos of the YELLOW (Left Turn) circuit illuminated, no images of the remaining four circuits lit, no clear nosebox wiring photo, and critically, no TechAssist app screenshot showing green 'Verified' status beside each of the five circuits. This is a significant documentation gap that undermines the technician's no-fault conclusion and prevents independent verification of the claimed outcome.

Vendor Compliance: Vendor compliance with the LCM troubleshooting procedure is poor. While the technician references using the PCT TechAssist app and verifying all circuits, there is no screenshot or documentary proof of this activity. The required procedure calls for photos of each light illuminated, a clear nosebox photo, and a TechAssist app completion screenshot showing green 'Verified' beside all five circuits — none of which are evidenced in this work order. The technician's feedback does not align with any of the structured expected feedback categories beyond a generic 'no defect found (confirmed with PCT),' and no specific observations about the YELLOW circuit's condition are documented. The procedure was referenced but not demonstrably completed to standard.

Repair Summary: No lighting parts were replaced on this work order. The only physical action taken was tightening all terminals at the Smart 7 nosebox, which is a corrective maintenance action but is not captured under a lighting or wiring line item. The line items on the work order are dominated by indirect charges, a PCT sensor activation charge (categorized under tire/TPMS — likely a misclassification), and lot service labor. No components associated with the YELLOW (Left Turn) circuit were replaced, and there is no evidence that the alerting circuit was specifically isolated, tested, or repaired beyond the general terminal tightening exercise.

Key Concerns: Several flags are raised by this work order. First, the absence of any photographic documentation is a critical compliance failure given the explicit photo requirements in the LCM troubleshooting procedure. Second, the PCT sensor activation line item is categorized under 'Tires, tubes, liners & valves > TPMS > Sensor - speed,' which is clearly a miscategorization for a lighting circuit inspection — this may indicate a templating shortcut by the vendor or a billing anomaly that warrants review. Third, the Smart 7 terminal tightening, while potentially meaningful, was not documented as a formal repair and raises the question of whether a loose connection was the root cause of the LCM alert — if so, this should have been categorized as a wiring/connector finding, not a no-fault. Overall, the work order lacks the rigor and documentation expected for an LCM pilot program response, and the vendor should be coached on photo requirements and proper line item classification.