LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a RED (Brake) circuit alert on trailer V561092 at site RFD2. Based on the available work order evidence, the sensor result is rated Inconclusive with low confidence (32%). The technician asserts all lights passed verification through the PCT app, which would suggest a possible false positive or transient fault; however, the complete absence of corroborating documentation makes it impossible to confirm or deny the original alert with any reliability. No replacement parts were charged that would indicate a confirmed lighting defect was found and corrected.

Photo Evidence: No photos of any kind were attached to this work order. The LCM troubleshooting procedure explicitly requires individual illuminated photos of each light in the circuit, a clear image of the nosebox wiring, and a TechAssist app screenshot showing a green 'Verified' status beside each of the five circuits. None of these deliverables were provided. This is a significant documentation failure that prevents any independent verification of the technician's verbal claim that all lights were confirmed functional. Without photographic evidence, there is no way to assess the physical condition of the brake lamps, connectors, nosebox, or wiring.

Vendor Compliance: Vendor compliance with the LCM troubleshooting procedure is poor. While the technician mentions using the 'PCT app' in their notes ('LIGTH VERIFACTION THROUGHT PCT APP ALL LIGTHS VERIFED'), there is no screenshot uploaded to substantiate this claim. The technician notes are also heavily misspelled and lack any structured feedback aligned with the required category list (e.g., 'no defect found (confirmed with PCT)', 'light failure', 'wiring damage', etc.). The procedure requires explicit reporting of observations and steps taken — none of that detail is present. This work order does not meet the minimum documentation standard set by the LCM troubleshooting protocol.

Repair Summary: No repairs were made to the lighting system. The line items consist of two indirect 'LITE MECHANICAL' charges, a 'PCT SENSOR ACTIVATION' charge (categorized under tire pressure sensors — a likely miscategorization), minimal standard service labor (0.1 hr at $109.90/hr), a shop supply/environmental fee ($1.64), and 0.2 hours of lot service labor ($75.00). There are no lamp replacements, connector repairs, or wiring line items. This billing pattern is consistent with a diagnostic-only visit or a no-fault-found outcome, but the improper parts categorization (brake circuit work billed under tire/sensor categories) raises questions about work order accuracy.

Key Concerns: Several flags are present on this work order. First, the complete absence of photos and PCT app screenshots is a direct violation of the troubleshooting procedure and makes the outcome unverifiable. Second, the line items are miscategorized — PCT sensor activation and speed sensor categories have no logical relationship to a brake lamp circuit investigation. Third, technician notes are barely legible due to apparent transcription or typing errors, suggesting low effort in documentation. Fourth, if the PCT app was genuinely used and all circuits verified green, this should have been logged as 'no defect found (confirmed with PCT),' but without the screenshot it can only be logged as 'no defect found (not confirmed with PCT).' Fleet maintenance reviewers should consider requiring the vendor to resubmit with proper photo documentation before closing this alert, or flagging this trailer for re-inspection at the next available opportunity.