Ofw Heinz Arnold's last sortie 16 or 17 April 1945?

[Roger Gaemperle]

Hello,

Manfred Boehme's JG7 book mentions that Ofw Heinz Arnold, the pilot of the NASM Me 262 "Yellow 7", flew his last sortie on 16 April 1945 and that one day later Fritz R.G. Mueller, who took over Arnold's Me 262 after his death, flew to Prague-Rusin and shot down a B-17.

Now, Jurleit and Volume 4 of Classic's Me 262 books mentions 17 April 1945 as the day of Arnold's last sortie. According to Fritz R.G. Mueller he returned back to Alt-Lönnewitz on the day Arnold crashed. So, he couldn't shot down a B-17 near Praque, which apparently happened on the 17 April as well. Jurleit also mentions this contradiction. Could it be that Jurleit and Vol4 were wrong and that it happened in fact on 16 April as stated in Boehme's book (which was published earlier)?

Can anyone tell if it was the 16 April or the 17 April when Arnold crashed?

Thanks,
Roger Gaemperle