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Warranty & Field-Return Analysis Checklist

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A checklist to manage warranty and field-return analysis, including part return, NTF (no-trouble-found) handling, root cause, and warranty reduction actions per IATF 16949 warranty management requirements.

IATF 16949:2016AIAG Warranty (W3)

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Warranty Management System

  • Is a documented warranty management process established, including customer-specific warranty requirements? *
  • Are warranty metrics (PPM, cost, incident rate) tracked and reviewed against targets? *
  • Is a cross-functional warranty review conducted at a defined cadence? *

Part Return & NTF Analysis

  • Is a controlled process in place for retrieving and analyzing returned warranty parts? *
  • Is the NTF (No Trouble Found) analysis process aligned to customer expectations (e.g., IATF/AIAG guidance)? *
  • Are returned parts tested under conditions replicating the field failure mode before disposition? *
  • Is the NTF rate monitored and driven down through improved test correlation? *

Root Cause & Corrective Action

  • Is structured problem solving (e.g., 8D, 5-Why) applied to confirmed warranty failures? *
  • Are lessons learned fed back into DFMEA/PFMEA and read-across to similar parts/processes? *
  • Are corrective actions verified for effectiveness through field data trending? *

Reporting & Reduction

  • Are warranty reduction projects prioritized by cost/occurrence (Pareto) and resourced? *
  • Is warranty performance communicated to top management in management review? *
  • Record top warranty failure modes and associated reduction actions

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