Hello Brian
Yes I know the identity of the pilot and nav , Lt Moslonov
and 2nd Lt.Klimtschuk . I did not say brought down by
Greek AA but over Saloniki , unable to clarify more details
the mission remains classified or hidden to public.
On Sept 1944 Black Sea Air Fleet were enganged
in Bulgaria so my first thought was that they headed for
Varna at high altitude from one of the Black Sea Fleet bases
such as Gelendjik for recon , then switched auto pilot followed by
oxygen supply issue at higher altitude leading to crew's
hypoxia and crew became incapacitated, that may explain
that none of the four crew attempted to bail out over Saloniki .
On August 2005 Helios Airline of Cyprus gone through such
mishap, though I may be wrong , so who knows .
https://www.nbcnews.com/id/wbna15206047
So I am still in dark
Cheers
Alex