LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM sensor flagged multiple unknown circuits on trailer V507559 at site DTW1. Based on available evidence, the sensor result is classified as Inconclusive with a confidence of only 35%. The vendor's written notes claim all lights were verified and functional, which would suggest a no-fault-found outcome; however, the complete absence of any required supporting documentation (TechAssist screenshots, illuminated light photos, nosebox photos) makes it impossible to validate this claim. The sensor alert remains unresolved from a documentation standpoint.

Photo Evidence: Two photos were submitted with this work order, and both are critically mismatched to the work order type. Both images show extreme close-up views of a tire tread area featuring a large, gaping puncture hole or gouge — this is a serious tire safety defect, not a lighting defect. There are zero photos of any trailer lights (illuminated or otherwise), zero photos of the nosebox or nosebox wiring, and zero screenshots from the Phillips Connect TechAssist application. The submitted photos appear to have been attached to the wrong work order entirely, or were submitted in error. This represents a complete failure of photo documentation requirements for this LCM work order.

Vendor Compliance: The vendor (TA) did not comply with the LCM troubleshooting procedure. The procedure explicitly required: (1) use of the Phillips Connect TechAssist app with a completion screenshot showing green 'Verified' beside each of the 5 circuits, (2) photos of each light illuminated, and (3) a clear photo of the nosebox wiring. None of these three requirements were fulfilled. The technician note 'ALL LIGHTS WORK VERIFIED TROUGH APP THANK YOU QE' is too vague and is unsupported by any photographic or app-based evidence. The vendor also did not provide a proper failure category from the defined list, and the faulted circuit remains listed as 'Multiple (Unknown),' indicating no specific diagnosis was documented.

Repair Summary: No repairs were made on this work order. There are no line items — no parts were replaced and no labor was billed beyond what may be implied by the technician's inspection claim. Since no repairs were performed and the alerting circuit was never confirmed or identified, it cannot be determined whether the underlying LCM fault (if genuine) was resolved. The tire damage visible in the photos, while a serious safety concern, is outside the scope of this lighting WO and should be escalated immediately as a separate maintenance issue.

Key Concerns: There are multiple serious concerns with this work order. First, the photo submission appears to belong to a different work order (tire inspection/repair), suggesting a documentation mix-up at the vendor level that undermines confidence in all submitted data. Second, the faulted circuit was never identified or confirmed — 'Multiple (Unknown)' remains as the circuit designation. Third, no TechAssist verification screenshot was provided, meaning PCT app usage cannot be confirmed despite the vendor's claim. Fourth, the tire photos reveal a dangerous tire condition (large puncture hole through the tread) on asset V507559 that requires immediate attention and should be escalated to site management at DTW1 as a critical safety defect independent of this LCM work order. This WO should be flagged for vendor follow-up to provide proper lighting documentation.