First-Article Inspection: How to Approve Samples Before Mass Production

When first-article inspection is essential#

FAI is essential when: ordering from a new supplier for the first time, requesting a specification or design change from an existing supplier, increasing order volume significantly (>30% above historical), or requesting a new colour, material, or packaging variant. FAI is less critical for reorders of identical products from suppliers with perfect quality history. A new supplier without quality history should ALWAYS complete FAI before mass production. A 10-year supplier with zero defect history reordering the same product might skip FAI for that specific SKU, but not for any product variation.

The FAI process step-by-step#

1. Supplier ships a sample lot (typically 10-50 units) from the first production run, marked as FAI sample. 2. You inspect the sample against the agreed specifications (dimensions, materials, finish, packaging, labelling, function). 3. Test for functional performance if applicable (electronics tested, textiles tested for colour fastness and durability, etc.). 4. Document findings: pass (approve mass production), conditional pass (approve with minor rework), or fail (do not proceed, return for rework). 5. If conditional or fail, communicate required corrections to supplier and request re-sample. 6. Upon approval, supplier can proceed with full production run.

Specification checklist for FAI inspection#

Dimension and tolerance: does the sample meet the specified dimensions within tolerance. Material: is the specified material used (not substituted). Finish: colour, texture, surface quality match specification. Packaging and labelling: labels correct, packaging protective, branding accurate. Assembly and functionality: all parts assembled correctly, all functions operate. Weight and balance: product weight matches specification (catches material substitution). Documentation: certificates of origin, test reports, compliance documents included as specified.

Documentation and approval authority#

FAI should be documented in writing: date inspected, product and SKU, sample size, inspection results by category (pass/fail), any conditions or rework required, approval authority (who signed off), and approval date. A product should not move to mass production without documented FAI approval. Approval authority should be consistent — typically your procurement or quality manager, not a single operator.

AskBiz FAI Tracker#

AskBiz tracks all active supplier relationships and flags when an FAI is required: new supplier, specification change, or volume increase >30%. It provides an FAI checklist template specific to your product category and tracks FAI status (pending, in-progress, approved, conditional, failed). Ask it: which open orders require FAI approval before production, which new suppliers have not completed FAI, show me the FAI history with this supplier and any recurring quality issues.

• First-article inspection (FAI) is a formal quality approval of a supplier's first production sample before mass production begins.
• A 2-hour inspection that costs SGD 500-1,000 can prevent a SGD 20K-50K defect issue affecting 10,000 units in mass production.