LCM Alert Validation

Confidence

Failure Category

Other

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a 'Defect Detected' alert on the BROWN (Marker) circuit for trailer V568202 at site RFD2. Based on the available work order data, the sensor result must be classified as Inconclusive with low confidence (35%). There is no vendor-supplied evidence — via photos, TechAssist screenshots, or repair line items — that definitively confirms or denies the presence of a lighting fault on the BROWN marker circuit. The absence of any lighting-related repair activity makes it impossible to validate the sensor's alert.

Photo Evidence: No photos are available for review within the provided work order data. The technician notes state that photos were uploaded via the TechAssist app ('VERFIED ALL CIRCUITS WITH PICTURES AND UPLOADED THEM'), but no images are attached or accessible here. Without visual confirmation of each marker light illuminated, a clear nosebox wiring photo, and a TechAssist completion screenshot showing green 'Verified' status on all five circuits, the photo documentation requirement cannot be considered met. This is a significant documentation gap that prevents any meaningful photo-based assessment.

Vendor Compliance: Vendor compliance with the LCM troubleshooting procedure is poor. While the technician verbally claims to have used the TechAssist app and photographed all circuits, none of the required outputs are verifiable: there is no TechAssist completion screenshot, no individual light photos, no nosebox wiring photo, and no structured feedback using the required defect category list (e.g., 'no defect found — confirmed with PCT' or a specific fault type). The notes are brief, informal, and lack the diagnostic detail expected. The entry 'pv' at the end of the notes is unexplained. Compliance cannot be confirmed based on the available evidence.

Repair Summary: No lighting repairs were made. All billable line items are unrelated to the faulted BROWN marker circuit: one line item is for a PCT sensor activation (AMAZON PCT SENSOR ACTIVATION), one is standard service labor tied to a tire/speed sensor, one is a shop supply/environmental fee, and one is lot service hourly labor categorized under aerodynamic devices. None of these items address marker lighting, wiring, connectors, or nosebox components. The alerting circuit was not repaired, and no compliant or non-compliant lamp brand assessment is applicable.

Key Concerns: Several red flags are present in this work order. First, there is a complete mismatch between the faulted circuit (BROWN — Marker lighting) and the work actually billed (tire/TPMS sensor activation and lot labor). This raises the possibility that the vendor used this lighting WO as a vehicle to bill for unrelated TPMS work, or that the wrong work order was closed against this asset. Second, the tech notes are vague and non-compliant with the structured troubleshooting feedback requirements. Third, the claim of photo uploads cannot be verified, undermining the credibility of the 'no defect found' implication. This work order warrants escalation for vendor clarification — specifically to confirm whether the BROWN marker circuit was genuinely inspected, whether photos can be retrieved from the TechAssist system, and whether the PCT sensor activation charge is legitimately associated with this trailer and this service event.