FTA
Reliability
FTA (Fault Tree Analysis)
Fault Tree Analysis
Top-down deductive analysis that uses logic gates to identify combinations of causes that can produce an undesired event.
Examples
- 01An FTA of 'loss of cooling water' shows that it needs both the main pump to fail AND the backup pump to fail to start.
- 02Before the maintenance strategy for the chiller system is changed, the team reviews the FTA to see which basic events matter most.
- 03The FTA reveals that the backup pump was never tested under load, so a monthly start test is added to the preventive tasks.