O dear, I tried loading it five times. Four times directly from X-plane menu: Immediate CTD before loading;
Fifth time, first load scenery with default Cessna, then load TBM9: Immediate CTD.
Attached flies are X-plane's Log.txt and the mac os x crash report.
Further specs: Mojave 10.14.6 on an iMac Retina 5K, 27", end2015, 4GHz i7, 32GB, AMD Radeon M395X 4096MB
(no "TBM900_Log.txt" because of early crash)
-->
Log.txt
-->
macosx_crashreport.txt
edit: The 6th time I repeated loading the Cessna, then disabeling plugins: Terrain radar, World Traffic, WorldTrafficRadar, XRAAS
to check out if multiple TCAS-using plugins might be the culprit. Result: with all those plugins disabled also: Crash to Desktop.
__
All the best,