There are some problems with the file which are causing the crash in the XPlane obj8 loader.
It appears that there are ANIM_end lines without corresponding ANIM_begin's.
I've added an error check for this, which allows the file to load under Linux - please try this linux plugin and let me know if it works for you.
inivis.com/external/ac3dxplanelxchristian.tgz
I'd be interested to know where the file came from.