The concerned person, a dual Swedish-Russian citizen, intends to fly PRN-BUD-LED with Wizz.
Regarding her Russian citizenship, the only document she has is an internal passport, as she had her international passport stolen not too long ago.
Per TIMATIC, this document is valid for entering Russia:
Passport Exemptions: Nationals of the Russian Fed. with a domestic passport (written only in Russian)
but with the following note:
Warning: For nationals of the Russian Fed. with a domestic passport (written only in Russian), carrier must send prior notification to the port of entry and obtain approval from Russian border Police.
My question is: how is this done, and by whom?
Is it something the passenger should E-Mail Wizz about after making the reservation, or will the ground handling Company (if so, at PRN or BUD?) automatically send some sort of message at check-in to the Russians (such as via SITA Telex)?
P.S. if anyone wonders, the exit will be through Belarus, which in turn accepts the internal passport for exit to anywhere (unlike Russia)