A "possibility" would be B-17G 44-8120, 483rd BG, 815 BS, shot down around 6:00 on December 7, 1944. They were flying a "Lone Wolf" mission to Salszburg M/Y. Crashed and crew captured at Fernhattal, Unterntauern. They were over Salzburg at 5:12 according to the MACR. Entire crew bailed out and were captured.
MACR is here, cause of crash given as unknown:
https://catalog.archives.gov/id/91087906
This link
http://www.americanairmuseum.com/aircraft/16328
seems to say they were shot down by flak. Possibly they were damaged by flak first then attacked by a night fighter ???
This link also has the cause of the crash as unknown:
https://daacda.acdh.oeaw.ac.at/entit...ers/detail/668