FAI

FAI, in regulated manufacturing and especially aerospace, commonly refers to First Article Inspection. It is a formal, documented process used to verify that the first production item (or initial run of items) fully meets all specified design, drawing, and specification requirements before broader release into regular production.

What FAI includes

In typical industrial and aerospace contexts, First Article Inspection includes:

• Producing a part or assembly using standard production processes, tooling, programs, and operators
• Reviewing and confirming all engineering data, drawings, specifications, and planning are current and correctly applied
• Measuring and recording key characteristics and dimensions against the design requirements
• Verifying materials, special processes, and certifications (for example heat treatment, coatings, or non-destructive testing) match requirements
• Documenting results in a structured FAI report, often using standardized forms such as those aligned with AS9102 in aerospace

FAI is usually required when:

• A new part is introduced
• A part design changes in a way that could affect fit, form, or function
• Manufacturing methods, location, tooling, or key suppliers change
• Production resumes after a long interruption, subject to customer or internal requirements

Operational meaning in manufacturing systems

Operationally, FAI appears as a controlled activity within quality and operations workflows, and may involve:

• Quality planning that flags which parts or changes require FAI
• Work orders or production orders linked to an FAI requirement in MES, ERP, or PLM systems
• Electronic collection of measurement data and evidence (for example inspection results, certificates, process parameters)
• Document control for FAI reports and related records, subject to audit and customer review
• Integration of FAI status into supplier scorecards, part approval status, and release decisions

In aerospace supplier management, FAI performance and completeness may be monitored as part of quality metrics on supplier scorecards, alongside defect rates, escape incidents, and documentation accuracy.

What FAI is not

To avoid confusion, FAI does not typically mean:

• Routine in-process inspection or final inspection of every batch
• A design validation test for new product development (though FAI supports design realization)
• A full process capability study, even though some organizations may combine FAI with capability analysis

Common confusion

FAI is sometimes confused with or used alongside:

• PPAP (Production Part Approval Process) in automotive and related industries. PPAP is a broader submission package that can include FAI-like dimensional results but also process documentation, capability studies, and more.
• Initial Sample Inspection Report (ISIR), a term used in some sectors for a similar concept. An ISIR may serve a similar function but follows different templates and rules.
• First Piece Inspection, which some organizations use for the first piece of every batch or shift. FAI, by contrast, focuses on initial qualification events or significant changes, not routine batch starts.

Relation to the aerospace supplier scorecard context

In the aerospace context, FAI is often a contractual or standard-based requirement. Suppliers may be evaluated on:

• Timely completion and submission of FAI packages
• Accuracy and completeness of FAI documentation and records
• Stability of production following FAI, such as low nonconformance rates on the approved configuration

Because of its traceability and documentation needs, FAI can drive how MES, QMS, and document control systems are configured to support regulated and long-lifecycle aerospace programs.