As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER DEPARTING, THE CREW OBSERVED A STICK SPURRIOUS SHAKER WARNING. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE. THE ANGLE OF ATTACK PROBE WAS FOUND TO BE STICKING, MAINTENANCE LURICATED THE PROBE AND THE SYSTEM WAS CHECKED SERVICEABLE. THE AIRCRAFT WAS RETURNED TO SERVICE.