What was found
FLIGHT #6003. DURING TAXI OUT RECEIVED AMBER "MACH TRIM/STAB TRIM" CAUTION MESSAGE, AIRCRAFT RETURNED TO THE GATE.REPLACED THE MACH/STAB TRIM PANEL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT #6003. DURING TAXI OUT RECEIVED AMBER "MACH TRIM/STAB TRIM" CAUTION MESSAGE, AIRCRAFT RETURNED TO THE GATE.REPLACED THE MACH/STAB TRIM PANEL.