Brian,
Accompanying two photos of this crash from the Norwegian website is the following info (again from the website): "Source:
http://ktsorens.tihlde.org/flyvrak/dovre.html. “He.111P Holum. 9.Staffel III./KG 4 5J+AT 24.4 1940. Lt.W P Lucy and Lt.Fraser-Harris of 803 Sqdn attacked this bomber SE of Romsdalsfjord. The burning bomber made an emergency landing on the fields of the farm Holum and smashed a house before it stopped. The wounded Group Commander Maj.Ernst Kusserow was strapped inside the aircraft. The pilot Uffz.Schultz and Squadron commander Hptm.Schumann, and the rest of the crew jumped out of the burning plane. Kusserow was rescued by the help from people at the farm. The rest of the crew ended up as POW's in Canada. There is a caption to this photo in Norwegian that will need to be translated. Photos sourced to Michael Balss with copyright claimed."
The photos confirm the code as "+AT," with the "A" in yellow.
Larry