Luftwaffe activity over Cambridgeshire UK

Hi Julian. I'm presently in NZ until August when I return to the UK. You might be able to help me. I've a flughbuch to a German Pilot who crashed his JU88 at Welney Marsh in 1943? (I'm recalling all this info from memory). I know they were hit after a sortie over Liverpool. I tried to find out more info on the microfich in Norwich Library but there was nothing. Someone mentioned the event could have very well been reported in the press in Cambridgeshire hence my contacting your very good self. I'm hoping the details above might be sufficient for you to assist.
Regards
Derek