Does any of you have more info about this incident?

"The Su-27 has seen limited action since it first entered service. These aircraft were used by the Russian Air Force during the 1992–1993 war in Abkhazia against Georgian forces. One fighter was reported shot down by an S-75 Dvina on 19 March 1993."

Source:

http://en.wikipedia.org/wiki/Su-27_Flanker