[HGabor]

You are welcome! I don't know, as this battle has always been out of my main interest. I think he just did not want any political complications later with the friendly fire victories, even if it was the Americans' fault. The soviets, however, lost 3 Yak-9s in this battle, all from the 153rd Aircraft Factory (Novosibirsk, - xx153xx):

Yak-9D, S/N: 2715396, engine: 415-2297 (Yak-9M?)
Yak-9D, S/N: 2415351, engine: 415-2530 (Yak-9T?)
Yak-9T, S/N: 1215370, engine: 415-1269


As you see, none of the Yak-3s was shot down. (I think 2715396 could be a Yak-9M, as it was already from the 27th batch. Standard, main plane of the 866th IAP was the Yak-9T, later the Yak-3.)

Gabor