German Flak – Bomber Claims

Guys,

Is there any records anywhere that I could find the German Flak Gun unit that brought down my Grandad’s Short Stirling Bomber (N6046 MG-Y 7 Squadron Stirling – all became POW) on the 7/8th September 1941?

Rough location was around Stuckenbusch Recklinghausen, I believe 88mm Flak.

They were on the way back from Berlin.

Regards

Ian