As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT ROTATION, THE CREW OBSERVED THE STICK SHAKER AND RECEIVED AN AURAL WARNING AND A STALL FAIL CAUTION MESSAGE. THE CREW DECLARED AN EMERGENCY AND RETURNED TO FIELD. THE AIRCRAFT LANDED WITHOUT FURTHUR INCIDENT. MAINTENANCE LUBRICATED BOTH ANGLE OF ATTACK VANES AND RESET THE STALL PROTECTION COMPUTER MEMORY AND RELEASED THE AIRCRAFT FOR SERVICE.