As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STABILIZER TRIM FAILED IN FLIGHT, WOULD NOT RESET. STABILIZER TRIM AND MACH TRIM CAUTION MSGS. POWERED DOWN AIRCRAFT. PERFORMED SELF-TEST OF HSTCU. MOTORED STABILIZER TRIM BOTH CHANNELS AND SINGLE CHANNEL FULL TRAVEL 4 TIMES IAW MM 27-40-00. OPERATIONAL CHECK GOOD.