[RudiS]

Radtke gives the following info in his book on KG54 for that day:
30-40 Me262 took off from Prag (I'm using the german designations) of which 4 were already shot down during take off by P-51's & 3 returned damaged by gun fire.
Probably 2 of the lost Me262 belonged to I./KG(J)54:
- Uffz Reiscke shot down during take off at Prag-Rusin
- Lt Mai shot down by Mustangs near Klotzsche
Uffz Bruno Reischke was killed and buried in the area of Slany according to the WAST.

Hope this helps.
Regards,
Rudi.