Receiving Inspection, First Article Inspection and Lot Acceptance
Incoming material needs both identity and an acceptance decision. Receiving checks establish what arrived and how it relates to purchasing information. First article inspection examines a component against the approved specification. Lot inspection applies an acceptance approach to a defined lot. These activities can connect without being interchangeable.
Establish identity and status at receipt
Check the delivered items, documentation, quantities and identifying information against the order. Preserve supplier-lot information and assign an internal identity where the system requires it. Make acceptance status visible so material awaiting evaluation cannot be mistaken for released stock.
Choose the appropriate inspection question
For a first article, identify the drawing revision and characteristics to be assessed, including dimensions and tolerances relevant to the component. For a lot, define the lot boundaries, sample selection, acceptance criteria and decision rules before inspection. The plan should explain how findings affect release, segregation and supplier follow-up.
Practical checklist
Match receipt to approved purchasing information.
Preserve lot and component identity.
Identify specification revision and acceptance status.
Define first-article or lot-inspection scope.
Record results, discrepancies and disposition.
Example
An acceptable first article from a new tool does not establish that every subsequent shipment is acceptable. Routine lot controls and supplier monitoring address the ongoing production question that the first-article review alone does not answer.
Common mistakes
Avoid inspecting to an uncontrolled drawing or choosing sample sizes after seeing results. Keep the rationale and decision rules documented before the acceptance activity begins.
Choose the relevant A.P. Lyon documents
Use receiving controls for delivery checks, receipt records and movement into inspection or inventory.
Use first article inspection for the approved drawing, measured characteristics and inspection report.
Use lot inspection for sample selection, acceptance criteria and recorded lot decisions.
Use identification controls to distinguish materials and products and display their acceptance status.
Review the product page, document previews and any content list before choosing. Adapt the selected documents to your device, processes and applicable requirements; the organization must generate and review its own implementation evidence.
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