As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE AIRCRAFT TOOK OFF IN RAIN AT +1 DEGREES CELSIUS. ON APPROACH THE CREW SELECTED FLAPS, NO FLAP MOVEMENT WAS NOTED AND THE FLAP CAUTION LIGHT ILLUMINATED. THE CREW CARRIED OUT A FLAPLESS LANDING. MAINTENANCE DISCOVERED THE FLAPS WERE FROZEN TO THE LOWER WING SKIN.