Welcome to root cause and failure analysis, ... driving the search to find the root cause. Fault Tree Analysis ... we could utilize cause-and-effect diagrams, ...

Once the shuttle engineers and technicians have whittled the fault tree down to 10 or 12 subsystems, Fraley said, they must determine how those components may have combined to cause the fatal result.

'Fault Tree' May Lead To Root Of Crash. Tool Helps Lay Out The Possible Causes. February 16, 2003. By Ariana Eunjung Cha.