How Analysis of Competing Hypotheses (ACH) Helps Make Sense of Complex Accidents

When an accident is serious, tragic, and technically complex, the hardest task is often not collecting information, but making sense of competing explanations. Different witnesses see different things. Technical systems interact in ways that are not obvious. Early narratives can harden before the evidence is fully examined. NOTE: The MRH-90 incident is a real-world example of a tragic event. This…