As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN - ON FLIGHT NUMBER 4216, DURING CRUISE AT FL330, MACH .80, THE CREW GOT AN INTERMITTENT STICK SHAKER, STALL SIREN AND FLASHING STALL LIGHT WITH STALL FAIL CAUTION MESSAGE. MAINTENANCE INTEROGATED THE MDC AND FOUND THE LT AOA RESOLVER INTERMITTENT. MAINTENANCE THEN REMOVED AND REPLACED LEFT ANGLE OF ATTACK TRANSDUCER. THE OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.