QUALITY MANAGEMENT
Fishbone Analysis - Molded Housing Cracks
New CAPA
ROOT CAUSE ANALYSIS
Fishbone Analysis - Molded Housing Cracks
Cracks observed in molded housing after production
CAPA-2026-0026 · Cracks found in molded housing
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Interactive Ishikawa Diagram
Click any cause node to inspect evidence and root-cause status.
Cause
Root cause
CAUSES
Man
Setup verification was incompl…
Machine
Cooling channels were uneven
✓
Method
Cycle-time limits were not enf…
✓
Material
Material moisture was above pr…
Measurement
Mold temperature sampling was …
Environment
Cooling-water temperature fluc…
PROBLEM
Cracks observed in molded h…
using after production
Cause Register
Evidence-backed causes identified during analysis
6 causes
Category
Cause
Evidence
Classification
Man
Setup verification was incomplete after mold change
Additional sample evidence for CAPA-2026-0026.
Potential cause
Machine
Cooling channels were uneven
Additional sample evidence for CAPA-2026-0026.
Root cause
Method
Cycle-time limits were not enforced
Additional sample evidence for CAPA-2026-0026.
Root cause
Material
Material moisture was above preferred process range
Additional sample evidence for CAPA-2026-0026.
Potential cause
Measurement
Mold temperature sampling was infrequent
Additional sample evidence for CAPA-2026-0026.
Potential cause
Environment
Cooling-water temperature fluctuated during shift
Additional sample evidence for CAPA-2026-0026.
Potential cause
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Category
Man
Machine
Method
Material
Measurement
Environment
Cause
Evidence / Observation
Confirmed root cause
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CATEGORY
Cause
Evidence / Observation
This cause is classified as a confirmed root cause.