Actual compatibility, process settings and engineering decisions still depend on the equipment, material, drawing and operating condition of the specific requirement.
NCR records the nonconformance
The NCR defines what requirement was not met: drawing dimension, material, marking, quantity, test result, process output or customer requirement.
Containment protects the customer and production
Segregation, reinspection, stop-ship, temporary replacement or other containment actions control immediate risk but do not prove the root cause is fixed.
RCA explains why the failure happened
A root cause should explain the mechanism that produced the nonconformance and be supported by evidence. “Operator mistake” is usually incomplete unless the system reason for the mistake is also understood.
Corrective action changes the system
CAPA / corrective action can include process controls, tooling, ERP/BOM changes, training, inspection, poka-yoke or document updates. The action should address the verified cause.
Effectiveness closes the loop
A corrective action is not complete because the form was signed. Check later evidence to confirm the failure mechanism has actually been prevented or reduced.