Frequently Asked Questions

Can you please confirm how exactly Annunciation Failures are accounted for? In my example, the 30 FITs for FAu are not part of the Fail Low, Fail High, Fail Detected, Dangerous Detected, Dangerous Undetected, Safe Detected, Safe Undetected or Residual. Wh
Last Updated a year ago

The easiest way to see the impact of AU failures is to look at a Markov model. If you look at the simple model below, you can see that once a diagnostic failure has occurred all future failures are undetected.


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