Nick,
You are correct in what you are saying, but as you well know, HUMS will detect IN SOME CIRCUMSTANCES a defect, which if left unattended will propagate into a failure, I assume the S-92 bearing monitor was designed with this very thought in mind??
As I said earlier, HUMS is certainly not failsafe, and will never be so until we develop intelligent monitoring, and even that will never be perfect, we just strive to produce the best and safest systems we can. I'm sure you guys over there follow the same philosophy.
"Early failure detection" is an old RAF phrase, which perhaps would have been better termed "Defect detection", but nevertheless, it does work to some degree.
On the subject of usage
EuroChopper that was indeed a thing the military insisted upon, due to poor tracking of component lifing. The Navy in particular were disgraceful at tracking the usage and whereabouts of major assemblies, and sub assemblies.
In short badly worded question for you Ben
