Importance of Standardized Terminology in Quality Processes
Published .
Applicable Standards
AS9102Applicable Sections
- ✓Form 1 — Part Number Accountability
- ✓Form 3 — Characteristic Accountability
Related
- AS9100
Topics
- definitions
- glossary
- fai
- documentation
- cots
- assembly
- interpretation
A supplier team encountered ambiguity when classifying components for a First Article Inspection (FAI). Based on internal practices, they treated an item with a customer-specific drawing as a Commercial-Off-the-Shelf (COTS) part and a multi-component item as a single detail part because it lacked a formal parts list document.
The team's classifications directly conflicted with the definitions provided in the governing aerospace standard. This led to an improperly structured FAI, with incorrect forms used and required traceability for sub-components omitted.
Key Takeaways
- The customer rejected the FAI package, citing non-conformance with the standard's definitions of 'Assembly' and 'COTS'.
- The product shipment was delayed pending a full rework of the inspection documentation, which required significant resource expenditure.
- The team's classifications directly conflicted with the definitions provided in the governing aerospace standard.
Common Mistakes
- This led to an improperly structured FAI, with incorrect forms used and required traceability for sub-components omitted.
- Incorrect or incomplete Form 1 part number traceability.
- Drawing notes not captured as characteristics.
Best Practice
Ensure all quality planning, inspection, and documentation activities are based on the precise definitions found within the applicable standards, not on internal convention or assumed meanings. Regularly train personnel on the glossary and definitions sections of standards like AS9102 to prevent costly misinterpretations.
Reflects the recommended position based on community discussion and expert review.
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