Hello Rick,
Gen.Qu. loss return 15 Sep 1940 item 3:
13.9. III./KG 55 Feindflug Ort: Etretat, Ursache: Absturz infolge Vereisung, He 111 P-2 2910 100%.
5 Tote (Lt Helmut Rockenhäuser)
In
www.btinternet.com/~air_research/kg55loss.pdf I have found:
13 September 1940 He 111 P-2 Stab III./KG 55 G1+AD WNr. 2910
F Fw Kurt Neubacher
B Lt Helmut Rockenhäuser
Bf Uffz August Preuss
Bm Fw Georg Link
Bs Ofw Andreas Braunegger all killed.
Crashed near Etretat northeast of Le Havre after a mission to London.
Regards
Leo