As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: SPEED LIMIT ILLUMINATED ON CAPT. PFD FOR A FEW SEC. MULTIPLE TIMES EVERY MINUTE. THEN AUTO PILOT DISENGAGES FMA SHOWS CWS P MIN MANUVER SPEED YELLOW BAR DISPARES DURING SPD LIM.REPLACED LEFT AOA SENSOR PER AMM 3421-05.