45 to 60.
• Supplier investigation.
• Material in-put inspection.
• Tracibility system.
Part qualification: first-piece inspection at the start of each production run.
SPC: variable and attribute control charting during the production run.
Part evaluation: last piece inspection at the end of each production run.
Final audit: random sampling of each ship lot for compliance of key characteristics.
Advanced quality and production planning:
• A part control plan.
• A process flowchart.
• Process failure mode and effects analysis.
• A full metrology review of the key parameters.
• A full dimensional layout.