Hi Michael,
140AFB - RA-02811 Hawker Siddeley HS-125 Series 700B c/n 257200
142F0D - decodes to RA-12045, RA-11789 however is now 11789, Antonov An-12BP, c/n6343905, KnAAPO
440207 - OE-UDP. This is a Diamond DA42 flight test registration. 3 former holders of the registration now fly in Russia so unable to determine which one. They are RA-01713 c/n 42.396, RA-01712 c/n 42.385 both for Ulyanovsk Aviation Flightschool and c/n 42.N015, no registration available but delivered to St Petersburg. There is also 21-BLUE, c/n 42.mn010 with Ukraine - Border Guard
504C8F - RA-42549, Yakovlev Yak-42 c/n 11040105, KrasAvia/Izhavia
507C26 - unknown to me
780040 - B-2557 became N332MP A39E5E. My d/b shows this 767 aircraft as now broken up and is no longer on FAA register
78094D - unknown to me
50807F - UR-ZVB is now 76658, Ilyushin IL-76MD, c/n 0053463902, Ukraine - Air Force and in d/b as such
Many thanks for those.
Alan