We don't stop at root cause — we engineer systems where critical failures cannot recur.
Prysma® is Knar's proprietary methodology for formal causal analysis and non-recurrence engineering. It goes beyond traditional Root Cause Analysis (RCA) by:
Prysma® transforms failure investigations from compliance exercises into strategic reliability improvements.
We don't just identify "the root cause" — we map all contributing factors across technical design, operational procedures, maintenance execution, and organizational systems.
The Prysma® framework ensures disciplined investigation with evidence documentation, hypothesis testing, and stakeholder validation at each stage.
Findings feed directly into updates to preventive maintenance plans, condition monitoring programs, and spare parts strategies.
Every corrective action includes a verification protocol — measurable criteria to prove the failure mechanism has been eliminated.
Challenge: A critical gas turbine experienced repeated failures despite multiple corrective actions. The operator faced regulatory pressure and contractual penalties.
Solution: We applied Prysma® to:
Result: Zero recurrence over 3+ years, with corrective actions embedded in the operator's standard procedures and verified through quarterly audits.
Every investigation follows the Protocolo de Entrega Cash3_V03 — our formal QA checklist that ensures model integrity, evidence traceability, and stakeholder sign-off.