Possibly a problem of X-Plane itself, therefore perhaps only for information.
After loading the TBM 900 (plugin is available) X-Plane crashes completely.
In the console you can read the following:
X-Plane-x86_64: ../src/gallium/drivers/radeonsi/si_descriptors.c:1150: si_upload_vertex_buffer_descriptors: Assertion `num_records >= 0 && num_records <= UINT_MAX' failed.
An automatic bug report was sent to the guys at X-Plane.