Thank you Nick for the link to his death card. It really opened up my search for him. I have also found him on the Kracker Lufwaffe Archive:
http://www.aircrewremembered.com/Kra...rch_type=exact
Further information was given through: Forum-der-Wehrmacht.
My conclussion to the events that lead to his accident are as follows:
On the morning of the accident Friedrich Rabe was flying the Bf-109 E and was part of Jagdgeschwader 77, II. Gruppe, 5. Staffel. The unit was stationed at Nordholz i the north of Germany by the sea.
The unit was taking off from the airfield and during this takeoff Friedrichs Staffel Kapitän Oberleutnant Pomaska "shifted". This shift caused Friedrich to lose his direction and lead him to collide with a chimney. The crash lead to Friedrich being mortally wounded and he died during transport to the hospital at the naval hospital in Cuxhaven.
Regards
Henrik