As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MACH TRIM INOPERATIVE LIGHT CAME ON AT ALTITUDE, AUTO THROTTLE AND AUTO PILOT BOTH DISENGAGED, AIR SPEED INDICATORS LEFT .78M RT .71M. ACFT SHUTTERED AND HAD VIBRATION. ALL INDICATIONS RETURNED TO NORMAL AFTER DESCENDING BELOW 28000 FT. PERFORMED NORMAL LANDING.