LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated an alert on the RED (Brake) circuit for trailer HV2302336 at site DEN4. Based on the available evidence, the sensor result is rated Inconclusive with a confidence of 35%. The vendor's own notes acknowledge that the ATIS lamp sensor is not connected or sending a signal to the Phillips Connect app, which means the LCM system may have generated a false alert due to a sensor communication failure, or alternatively a real lighting fault may exist but could not be confirmed or ruled out because the sensing pathway was broken. Neither outcome can be definitively established without a functioning sensor connection.

Photo Evidence: The two photos submitted with this work order both depict tire sidewall damage — specifically, vertical cracking/crazing on the tire sidewall visible in Photo 1, and a more pronounced gouge or cut in the tire sidewall visible in Photo 2. These images are entirely unrelated to the RED (Brake) lighting circuit that triggered this work order. There are no photos of brake lights illuminated, no rear lamp cluster photos, no nosebox wiring photos, and no TechAssist app screenshot showing green 'Verified' status for any of the five circuits. The photo documentation for this work order is completely non-compliant with the required LCM troubleshooting procedure.

Vendor Compliance: The vendor demonstrates partial compliance at best. They did connect to the unit and launch the Phillips Connect app, which satisfies the minimum threshold of tool usage. However, they failed to follow the structured troubleshooting protocol in virtually every other respect: no photos of each light illuminated were provided, no clear nosebox wiring photo was submitted, and no TechAssist app completion screenshot showing green 'Verified' status for all five circuits was included. The feedback provided ('ATIS lamp sensor is not connected or sending the signal') does not map cleanly to any of the defined expected feedback categories, and the submitted photos of tire damage suggest the technician may have been working on a different defect entirely or confused this work order with another asset/issue.

Repair Summary: No repairs were made to the lighting system or to the RED (Brake) circuit. The vendor noted no audible air leaks on the ATIS system after supplying air to the unit, but took no corrective action on the disconnected ATIS lamp sensor. No parts were listed in the line items, and no labor line items were recorded. The alerting circuit — RED (Brake) — was not addressed, repaired, or even photographically documented.

Key Concerns: This work order raises several significant red flags. First, the submitted photos are for tire damage, not lighting — indicating either a documentation error (wrong photos attached to this WO) or a fundamental misunderstanding of the work order scope by the technician. Second, the ATIS sensor being disconnected is a critical finding that was not resolved; this means the LCM system will likely continue to generate alerts or fail to monitor this trailer accurately. Third, there are no line items whatsoever, suggesting minimal engagement with the actual repair. Fourth, the technician's note that 'no issue with the lights' was found is unsubstantiated without PCT verification screenshots. This WO should be flagged for vendor follow-up, requiring proper lighting photos, a nosebox inspection photo, a PCT TechAssist verification screenshot, and resolution of the disconnected ATIS sensor before the trailer is returned to service with confidence.