When running Detection using Detection algorithm Common Cause Half-split Failure Probs the Analyst will sometimes get this error message.

 

Example that will cause this message: If an inspection test is setup to inspect for malfunction it will detect the function but not prove the function good. It is good for detection but can only be used for Isolation to detetermine failure and not remove the ambiguity item from the ambiguity if it fails (No malfunction proven).