Same failure across one product
May indicate a product design, process or component issue.
Failure Analysis
How to Find Recurring Failures in Manufacturing Test Data
Identify repeat failures across products, stations, batches and time periods so engineering and quality teams can act faster.
How do teams find recurring failures in manufacturing test data?
Teams find recurring failures by comparing test data across products, variants, stations, fixtures, batches, suppliers, time periods and retest history. Connected manufacturing test data makes repeated patterns easier to identify than isolated reports or spreadsheets.
Why recurring failures are hard to find
Recurring failures are often visible only after someone manually compares reports, spreadsheets, logs or support cases.
A single failure may look isolated. Across hundreds or thousands of units, it may reveal a product issue, station problem, fixture fault, process change or supplier defect.
Where recurring failures hide
Recurring failures may be hidden in:
- Test reports
- CSV files
- Station logs
- LabVIEW outputs
- TestStand databases
- Inspection systems
- MES records
- Quality reports
- Customer returns
- Engineering notes
What to compare
To find recurring failures, compare test data by:
- Product
- Product variant
- Test step
- Failure code
- Measured value
- Station
- Fixture
- Operator
- Batch
- Supplier
- Time period
- Retest history
Common recurring failure patterns
Same failure on one station
May indicate a fixture, calibration, connection or local station problem.
Same failure after a limit change
May indicate limit instability or unclear acceptance criteria.
Same failure linked to a batch
May indicate supplier, material or process variation.
Same failure that passes after retest
May indicate marginal behaviour, fixture contact issues or test repeatability problems.
How Arc helps
Arc helps teams structure test data so recurring failures can be grouped, searched and analysed across products, stations, batches and time periods.
This gives engineering and quality teams a faster route from repeated symptoms to likely investigation paths.
FAQ
What is a recurring failure?
A recurring failure is a repeated test failure pattern that appears across multiple units, stations, products or time periods.
Why are recurring failures difficult to detect?
They are difficult to detect when test data is spread across different files, systems and reports.
What data helps identify recurring failures?
Test step, failure code, measured value, station, product, timestamp, batch and retest history are all useful.
Can recurring failures be linked to stations?
Yes. Station-level comparisons can reveal fixture, calibration or local process issues.
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