LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system flagged the BROWN (Marker) circuit on trailer V565353 at site DCA1. Based on the available evidence, the sensor result is classified as *Inconclusive* with a confidence of 35%. While the technician verbally reported no defect found and all lights operational, there is no objective, verifiable documentation — no TechAssist app screenshots, no photos of illuminated lights, and no PCT-confirmed green 'Verified' status for the five circuits — to either confirm or refute the sensor alert. The technician's attribution of 'wear and tear' as the cause is inconsistent with a no-defect conclusion, adding further ambiguity.

Photo Evidence: No photos were attached to this work order. The LCM troubleshooting procedure explicitly requires photos of each light illuminated, a clear picture of the nosebox wiring, and a TechAssist app screenshot showing a green 'Verified' status beside each of the five circuits. None of these were provided. Without photographic evidence, it is impossible to independently verify the technician's claim that all lights were functional and on the correct circuits. This is a significant documentation deficiency and prevents proper validation of the work performed.

Vendor Compliance: The vendor did not follow the LCM troubleshooting procedure. The procedure required use of the Phillips Connect TechAssist app and a completion screenshot demonstrating verified status on all five circuits. The technician referenced a 'PC app' in passing ('verified through PC app') but provided no screenshot or formal app output to confirm this. No photos of illuminated lights were submitted. No nosebox photo was included. The technician did note checking bolts, testing voltage on top and bottom posts of all circuits (reporting >12V), and visually verifying all lights were on correct circuits — but these steps alone do not satisfy the required protocol. Compliance is rated as substantially deficient.

Repair Summary: No repairs were made to the BROWN marker circuit or any lighting component. The line items billed are entirely unrelated to the faulted circuit: a speed sensor activation (AMAZON PCT SENSOR ACTIVATION), standard service labor at 0.1 hours, a shop supply/environmental fee, and lot service hourly labor at 0.5 hours. None of these charges correspond to marker light repair, nosebox work, or wiring remediation on the BROWN circuit. The presence of a speed sensor activation charge on a lighting work order is particularly anomalous and warrants review for potential billing irregularities or misapplied charges.

Key Concerns: Several red flags are present in this work order. First, the line items charged are completely mismatched to the faulted circuit — a speed sensor activation and lot labor have no relevance to a BROWN marker circuit LCM alert. Second, zero photographic documentation was provided despite it being a core requirement of the troubleshooting procedure. Third, the technician's own notes describe the cause as 'wear and tear' while simultaneously concluding no defect exists — these are contradictory positions. Fourth, the work order contains an 'override for LCM pilot' notation at the top, suggesting administrative pressure to close the work order outside the normal validation process. Fifth, the 'Disregard' and 'pv/W/PV' notations in the notes suggest internal back-and-forth that may indicate uncertainty about the validity of the closure. This work order should be flagged for vendor review and potentially reopened for proper PCT-verified inspection of the BROWN marker circuit.