Supplier Quality Incident Root Cause Analyzer
Analyze supplier quality incidents and generate automotive-compliant corrective action plans
What You Can Do
You can conduct structured root cause analyses on supplier quality incidents using automotive industry standards (AIAG, IATF, VDA). The skill guides you through incident assessment, multi-level RCA using decision trees, and generates detailed corrective action plans (CAPs) with effectiveness verification. You'll transform raw incident data into compliance-ready documentation that addresses systemic issues, reduces repeat failures, and supports supplier performance benchmarking.
Features
automatically categorizes defects by impact level (safety, performance, cosmetic) to determine RCA depth and timeline
applies 5-Why analysis, fault trees, and fishbone diagrams aligned with AIAG methodology
evaluates failure modes and risk priority numbers to prioritize corrective actions
produces structured corrective action plans with accountability, timelines, and verification methods
includes metrics and audit checkpoints to verify CAP closure and prevent recurrence
ensures all analysis and actions meet automotive customer audit requirements
benchmarks corrective actions across your supplier base against industry standards
Example Output
Example 1: Supplier solder joint defect
- Incident: 2% of connectors from Supplier A failed electrical continuity testing
- RCA Output: Process capability analysis revealed solder reflow oven temperature drift; root cause = inadequate temperature calibration schedule
- CAP: Implement daily oven calibration, upgrade temperature data logging, operator training completion by [date]
- Effectiveness: 30-day audit of 500 units shows 0 defects; FMEA RPN reduced from 168 to 24
Example 2: Delivery performance incident
- Incident: Supplier B missed 3 consecutive weekly commitments by 5+ days
- RCA Output: Root cause = inadequate production scheduling buffer and lack of capacity visibility; secondary cause = insufficient communication protocol
- CAP: Establish weekly capacity review calls, implement 2-week rolling forecast, hire 1 production scheduler by [date]
- Effectiveness: On-time delivery improved to 98% over 60 days; supplier escalation status downgraded
What's Included
- SKILL.md instruction file: detailed RCA methodology, decision trees, and process flow
- Incident Assessment Template: severity classification matrix and initial containment checklist
- Root Cause Analysis Worksheet: 5-Why framework, fishbone diagram structure, and FMEA integration guide
- Corrective Action Plan (CAP) Template: structured format with accountability, timelines, and verification criteria aligned to AIAG standards
- CAP Effectiveness Tracking Sheet: metrics dashboard, audit checkpoints, and closure validation criteria
Who It's For
- Automotive supplier quality engineers — conduct RCAs on incoming supplier defects and non-conformances
- Quality assurance managers — manage supplier scorecards and corrective action tracking across multiple suppliers
- Operations leaders — evaluate supplier performance trends and escalation decisions
- OEM quality auditors — document supplier compliance and corrective action effectiveness for customer audits
- Supply chain specialists — benchmark supplier quality performance and supplier base optimization
Best For
- Defect analysis and root cause investigation — systematically trace quality failures to process or systemic causes
- Corrective action planning — develop comprehensive, audit-compliant CAPs with clear accountability and timelines
- Supplier escalation decisions — determine when repeat issues warrant supplier probation or delisting
- OEM audit preparation — generate documented RCA and CAP evidence meeting IATF, VDA, and customer requirements
- Quality performance trending — track repeat failures by supplier and identify systemic improvement opportunities
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