First-piece inspection: evidence before production release

Define the inspection being discussed

This guide addresses the organization’s first-piece or production-start inspection control. It is not a complete AS9102 First Article Inspection guide or a claim that a first-piece check satisfies all contractual FAI requirements. Establish the applicable inspection scope before evaluating the evidence.

A signature can identify an inspection or approval role. The supporting record should also make clear what was checked, against which criteria, with what result and what subsequent work was authorized.

A synthetic example: a signed form with missing results

Imagine a process that requires first-piece approval before continued production. A sampled form has signatures, but some required dimensional results are absent, the drawing revision is unclear and the approval time is later than the recorded production start.

These observations require investigation. Compare the defined control with actual events and corroborating records. Do not assume a late entry proves that no inspection occurred; determine what evidence establishes the inspection and authorization sequence.

Link characteristics to the acceptance basis

Trace the product and work order to the applicable drawing, specification and inspection instructions. Identify the characteristics included in the first-piece check and the basis for that scope. Confirm that required characteristics have not been omitted without an appropriate basis.

For measured characteristics, retain the results required by the applicable inspection method and requirements. A bare “OK” may not demonstrate a required numerical measurement. For attribute checks, an appropriately defined pass/fail result can be relevant evidence; the acceptance basis must remain clear.

Check measurement and timing

Compare the recorded result with the criterion and identify the measurement equipment or method where needed for traceability. Review equipment suitability and relevant status rather than relying only on the presence of a calibration label.

Where a first-piece hold point is defined, trace its completion and authorization before the subsequent work it controls. Resolve conflicting timestamps and records. Do not turn the organization’s specific hold point into a blanket claim about every production process.

Handle a failed check as a control decision

Follow any failure into the affected-product assessment, appropriate hold or containment, authorized adjustment and required reinspection. Check how the team determined the extent of any work performed under the suspect conditions.

After a change in equipment, tooling, material or process settings, review the applicable conditions for renewed verification. These are prompts to evaluate the defined triggers, not a universal list that requires an identical inspection after every change.

Review the complete evidence trail

For a sampled record, answer six questions: which product and order, which revision, which characteristics and criteria, which results, which timing and authorization, and which response to any anomaly? Missing links should lead to further verification rather than retrospective paperwork alone.

Connect recurring first-piece problems to process investigation and corrective action. A useful record supports production control at the time of the decision and remains understandable when reviewed later.

Related practice guides

• Why management review needs more than meeting minutes
• Why quarantined product can still escape
• From procedure to shop floor: verify the work as performed
• Why more procedures do not guarantee audit conformity

Want some practice? Try the interactive mini-lesson.