That -600 didn't have a tail tank. Yes the tail wasn't scorched and the NTSB pictures of the mount points still had unburned composite even after the fire on the ground.
But:
That plane came in after a long 8 hour flight the day before and now your telling me the tail came off in the first 2 minutes of flight the next day. Doubtful. At that speed going into a flat spin should have caused nothing structurally to fail until it hit the ground. Years from now we will know the truth, maybe.
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