Hi there,
I am most interested in any more details you might have.
Plane T5+DK on that day had crew
Ofw Erwin Heinemann (pilot), Fw Herbert Girold (observer), Uffz Willi Kramer (radio), Fw Heinz Haus (mechanic).
All sources still list plane and crew as MIA/unknown cause/Krasnodar/Makhachkala/Baku.
Do you have the MIGs call sign and are you sure about the location (Mahachkala)? Is your grandfather still alive?
Any information that could be used to inquire at the Russian military archives would be most appreciated!