[Juha]

Hello marsyao
Yes, I understand that. Without much more thorough research on German and Soviet sources it is not even possible to establish even with reasonable degree of certainly that the Li-2 was attacked by Lipfert and his wingman. After all Boston was shoulder winged a/c and its wing platform was different of that of Li-2/DC-3. But a/c recognition is/was always a problem in those fast moving high-stress situations, so IMHO the Li-2 is altogether possible victim.

But thanks for Your comment
Juha