As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON A PRE-FLIGHT 4 VORTEX GENERATORS WERE FOUND MISSING ON THE WING TOP. THE CREW REVIEWED THE CDL AND THE AIRCRAFT COULD OPERATE WITH NO PERFORMANCE PENALTY. MAINTENANCE WAS MADE AWARE AND GENERATED A WORK CARD FOR WHEN IT RETURNS TO REPLACE THE UNITS MISSING.