LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

no defect found (not confirmed with PCT)

Sensor Verdict: The LCM system generated a BROWN circuit (Marker) alert on trailer WV2500491 at site DEN4. The sensor result is classified as Inconclusive with 35% confidence. There is no supporting or contradicting evidence from a completed inspection — the vendor was unable to access the trailer to perform any diagnostic work. The alert remains open in terms of physical verification, and the underlying defect, if any, has not been assessed.

Photo Evidence: Three photos were submitted with this work order (TC_07770, TC_07771, TC_07772), all timestamped May 21, 2026, between 10:44:14 and 10:44:22 AM. The photos show the rear and side of the trailer backed into a dock door (DD116) at DEN4. No lights are shown in an illuminated state, there is no nosebox photo, and there is no TechAssist app screenshot showing circuit verification. The photos confirm the trailer's docked position and explain why the vendor could not conduct a full inspection, but they provide zero diagnostic value regarding the BROWN marker circuit condition. The photos do not meet the documentation requirements outlined in the LCM troubleshooting procedure.

Vendor Compliance: The vendor did not comply with the LCM troubleshooting procedure in any meaningful way. The required steps — using the Phillips Connect TechAssist app, photographing each illuminated light circuit, capturing a clear nosebox wiring photo, and providing a TechAssist completion screenshot showing green 'Verified' beside each of the 5 circuits — were not performed. The technician's notes indicate the trailer was inaccessible due to its dock door position and that the visit was for estimation and location update purposes only. While the physical barrier is understandable, the work order was closed without rescheduling or escalating to ensure the defect could be properly assessed.

Repair Summary: No repairs were made. No parts were replaced. The line items reflect only indirect labor charges (0.5 hours at $75.00) and a shop supply/environmental fee ($2.36), consistent with a brief lot visit rather than a diagnostic or repair event. The faulted BROWN (Marker) circuit was not inspected, tested, or repaired. This work order should not be considered closed from a maintenance standpoint.

Key Concerns: The primary concern is that the LCM alert has gone unresolved. The trailer was inaccessible during the vendor visit, but there is no documentation indicating a follow-up visit was scheduled or that the trailer was flagged for re-inspection once it became available. The work order was closed with a 'verify only' notation and no PCT confirmation — a significant compliance gap. Fleet reviewers should ensure this trailer is flagged for a proper re-inspection, the BROWN marker circuit is tested with the TechAssist app, and a new work order is generated if the defect is confirmed. There is also a concern about vendor accountability — submitting indirect charges without completing diagnostic work, and closing without escalation, represents a procedural shortcut that should be addressed with the vendor (TA).