AW139 Engineer
We found our problem with FIPS which were SOVs (both). Before the change of these the system worked sometimes and at the end it didn't work at all. About the ARINC 429 adapter and software - to be honest I'm a little bit disappointed of it. I hoped it says the exact problem but it tells a punch of codes and due to that you need a lot tabels and other papers to figure out what the computer wants to tell you.