[Stig Jarlevik]

I take if that Prüfmstr stands for Prüfmeister?

What was his job on this flight? I suppose he was some kind of inspector/controller of something, but it feels odd to have him onboard a flight so close to the battlefront. Did every unit have one or more like him?
Was he actually a pilot or did he check out on other things?

Cheers
Stig