I don't have ASXP, so I cant be sure.
Ok, to the problem. When the issue points to an X-Plane.exe problem, as it does in this case:
Backtrace is:
0 00000239B0996280 D:\XFlightSimulator\X-Plane 11\X-Plane.exe+00000239B0996280 ()
1 0000000017C62CC0 D:\XFlightSimulator\X-Plane 11\X-Plane.exe+0000000017C62CC0 ()
it could mean any number of things. And in cases like this, whereas I understand you want us to analyze and fix this, it's easier said than done. The TBM will work fine in vanilla X-Plane. When you start adding plugins, the potential for problems increases.
In your case, remove ASXP first, then test with Skymaxx installed. If crashes stop, the problem lies somewhere between the TBM and ASXP. If crashes still occur, remove Skymaxx (while keeping ASXP removed). Retest. If crashes stop, replace ASXP. Retest.
Post back with results so we can continue.