As a management level engineering officer, you are apt to be the primary investigator investigating the root cause of the failure of a piece of machinery. In collecting the necessary data for the root cause analysis, what should be your FIRST priority?

Correct Answer: Option B — Collecting and preserving the physical evidence of the failure.

Preserving physical evidence is the critical first step in any root cause analysis. Evidence such as fractured parts, debris, or fluid samples can be easily lost, contaminated, or altered. Securing the scene ensures that subsequent investigations and technical analyses are based on accurate, untainted data regarding the failure's origin.