| Field | What to record |
|---|---|
| Asset / line | Machine name, station, asset number |
| Date and time | Start of event, maintenance arrival, restart time |
| Observed symptom | Neutral description of what failed to happen |
| Production impact | Line down, reduced speed, quality risk, isolated station, etc. |
| Initial evidence | Alarms, LEDs, positions, measurements, operator timeline |
| Recent changes | Maintenance, recipe, cleaning, tooling, software, product, utilities |
| Tests performed | Include important passed and failed tests |
| Root cause | Physical or logical failure mechanism, not only the replaced part |
| Corrective action | Repair, replacement, adjustment, configuration restoration |
| Verification | Cycles, load, current, pressure, quality, temperature, duration |
| Temporary conditions | Bypasses, substitute parts, reduced speed, monitoring |
| Follow-up | Owner, work order, spare, engineering change, training, PM update |