And yeah you're right, let's be precise. It is a cs-23 aircraft, that can be operated under the cs-25 performance requirements and standards, which is what Van Air does.
So if you really want to be picky, AB's requirement asking for experience on cs-25 is not precise enough to exclude pilots who have flown Let410 at Van Air.
I don't know about AIS and their Jet31 operations, but I do know the Jet31 can also be operated under cs-25 standards.
I have a sense this pic will not satisfy you. But that's all I have unfortunately. If you want more I encourage you to contact Van Air and AIS directly and ask for a tour of their fleets.
On this note, peace out
