Root Cause Analysis (RCA): Turning Non-Conformance into Operational Strength
What is Root Cause Analysis in Aerospace?
Root Cause Analysis (RCA) is a systematic investigation used to identify the "ground truth" origin of a failure or non-conformance. In the IA9100 and AS9100 frameworks, RCA is not just a fix—it is a mandatory requirement to ensure that Corrective and Preventive Actions (CAPA) permanently eliminate the problem.
The 2026 Approach to CAPA
Under the new IA9100 standards, RCA must now account for Human Factors and Data Integrity. We help SMEs move beyond "Retrain the Employee" (which auditors now reject) toward systemic solutions.
Core RCA Methodologies We Implement:
- The 5 Whys: Iterative interrogation to peel away symptoms and reveal the true cause.
- Fishbone (Ishikawa) Diagram: Mapping Man, Machine, Material, Method, Measurement, and Mother Nature.
- Failure Mode and Effects Analysis (FMEA): Predicting failures before they reach the customer.
Common RCA Pitfalls for SMEs
| The Weak Response (Auditor Rejection) | The Ascent Strategy (Audit Approval) |
|---|---|
| "Employee was distracted; will retrain." | Identify Human Factors (lighting, fatigue, or unclear work instructions). |
| "Replaced the broken tool." | Audit the Calibration/Maintenance schedule to find why it broke undetected. |
| "Updated the SOP." | Verify Effectiveness through a 30-60-90 day look-back period. |
Recover from Audit Findings Faster
Are you facing a Major Non-Conformance? We specialize in "Red-to-Green" recovery plans that satisfy Tier-1 primes and Registrars.