4Auditee guide · Manufacturing & engineering

AS9100Aerospace quality management, explained for the people doing the work.

See what the standard covers, gather supporting records and prepare for your next assessment.

By 4AuditeeAerospace management-system certificationReferences checked 26 September 2026

What does AS9100 cover?

AS9100 builds on ISO 9001 with aerospace expectations for quality and product safety. Scope matters: related standards address maintenance and distribution activities. A quality-system certificate does not replace product-specific or regulatory approvals.

Who it is for

Aviation, space and defence organizations whose activities match the AS/EN 9100 scope.

Key areas to understand

Start with these areas. Identify which requirements apply to your activities and who is responsible for them.

  1. 1Control configuration and changes across product realization.
  2. 2Manage product safety, supplier risks and traceability.
  3. 3Maintain evidence supporting verification and release.

Evidence to prepare

This list is a starting point. Check the standard for all required documents. For each item, record who is responsible, the activity or site it relates to, and a recent example showing how it works.

  • Configuration and technical requirement records
  • Supplier approval and flow-down records
  • Production and inspection evidence
  • Nonconformity and concession decisions
  • Product traceability and release records

Keep records that explain what was checked, which requirement was used and who checked it. Include any action taken when a requirement was not met. Link each record to the work it supports.

An internal audit example

Suggested checks from 4Auditee

Trace a released component to its drawing revision, material records, production steps and inspection results. If a concession exists, check its approval and scope. Confirm that outsourced processes received the requirements applicable to that component.

Choose a sample that suits your activities and risks. If you find a gap, record the requirement, the evidence and what was missing. Check more examples if the first results suggest a wider problem.

A common problem to check

An approved supplier list does not prove that technical requirements reached the supplier for a particular order. Inspect the actual purchasing and acceptance trail.

Prepare for assessment

The assessment type for this guide is aerospace management-system certification. Confirm the requirements, what will be assessed and how the assessment will work with the responsible body or customer. These steps help you prepare. You must also follow the scheme’s official rules.

  1. Define what is covered. List the products, services, activities and sites. Record the standard edition, additional scheme rules and customer requirements.
  2. Find what is missing. Compare the requirements with current work. Prioritise gaps by risk. Assign someone responsible and a completion date.
  3. Keep records of everyday work. Check a sample of actual records and speak with the people involved. Make sure they understand their responsibilities.
  4. Check the results. Complete internal reviews and audits. Check that corrective actions worked before closing problems.

From one site to many

Make it easy to find who is responsible at each site. Keep company policies separate from records of local work. Link each site’s records to its activities, risks and requirements so you can spot gaps at individual sites.

Sites that share a management system do not automatically qualify for one certificate or assessment. Confirm which sites can be included and how they will be checked with the assessment body.

About this guide and its sources

4Auditee wrote this guide using the public source below. The evidence list, audit example and preparation steps are our suggestions. Read the official standard and scheme rules for the full requirements. This guide does not include the standard’s full text or provide certification.

DNV: AS9100 reference information

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