Reference / nine answers
Aircraft Production Questions
Short answers to common questions about manufacturing capability, inspection and the records that connect them.
1. Does automation guarantee a conforming part?
No. Automation can improve repeatability and reduce some sources of variation, but the result still depends on correct inputs, machine and tooling condition, controlled programs, suitable operators and verification against requirements.
2. What is the difference between process capability and qualification?
Capability describes observed process performance under stated conditions. Qualification is a formal demonstration that a defined process meets specified criteria within a stated scope. Neither makes every future output automatically conforming.
3. Is a machine log an inspection report?
Not necessarily. A log may show that a cycle ran or a parameter was recorded. An inspection report identifies the characteristic, method, acceptance criteria and result, with relevant context such as part identity and measurement reference.
4. Why is drawing revision part of traceability?
Revisions can alter geometry, tolerances, datums or notes. A production record needs to show which approved definition applied when a part was made and inspected; a later revision cannot silently replace that history.
5. What does a first article inspection establish?
It documents inspection of a defined production item against applicable requirements and procedures. Its coverage and use depend on the governing standard, contract and customer requirements. It does not prove every later part will conform.
6. Do more measurement points always mean better evidence?
No. Data volume is useful only when the method, alignment, uncertainty, coverage and decision rules are suitable. A large dataset can still answer the wrong question if the datum setup or model revision is incorrect.
7. Can a certification mark prove a component is acceptable?
A management-system certification, where applicable, has a defined scope and does not replace product-specific requirements, inspection evidence or authorized disposition for an individual component.
8. What should happen when an inspection result is out of tolerance?
The affected item or population should be identified and controlled. The original result should remain in the record, followed by documented evaluation and an authorized disposition such as rework, repair, rejection or an approved concession where allowed.
9. Which standards are useful starting points?
Depending on context, readers may encounter ISO 9001, AS9100, AS9102, ISO 1101, ISO 14253-1, ISO 10360-2, ISO 19011 and relevant ASTM test methods. Their applicability and current editions must be confirmed for the specific requirement.
Standards register
This index identifies real standards and technical documents as reading leads; it does not imply certification, conformity or applicability to a particular aircraft part. Confirm the current edition, scope and contract before use.
| Reference | General subject |
|---|---|
| ISO 9001 | Quality management system requirements. |
| AS9100 | Aerospace quality management system requirements. |
| AS9102 | First article inspection requirements in applicable aerospace contexts. |
| ISO 9000 | Quality management fundamentals and vocabulary. |
| ISO 19011 | Guidance for auditing management systems. |
| ISO 1101 | Geometrical product specifications and tolerancing. |
| ISO 14253-1 | Decision rules for proving conformity or nonconformity. |
| ISO 10360-2 | Acceptance and reverification tests for coordinate measuring machines. |
| ISO 2768-1 | General tolerances for linear and angular dimensions. |
| ISO 14644-1 | Classification of air cleanliness by particle concentration. |
| ASTM E1417/E1417M | Liquid penetrant testing practice. |
| ASTM E1444/E1444M | Magnetic particle testing practice. |
| ASTM E1742/E1742M | Radiographic examination practice. |
| ASTM D3039 | Tensile properties of polymer matrix composite materials. |
| ASTM D6641 | Compressive properties of polymer matrix composite materials. |
| ASTM D2344 | Short-beam strength of polymer matrix composite materials. |
| ASTM D7136 | Impact damage resistance of composite laminates. |