As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER ARRIVING AT THE GATE AND DURING WALK-AROUND, FOUND NR 4 SLAT, LT WING, INBD BLOW OUT PANEL BLOWN WITH NO ANTI-ICING DUCT VISIBLE FROM THE OPENING. FURTHER INSPECTION REVEALED THE DUCTS TO BE DISINTEGRATED AND FRAYED WITH STRANDS OF TUBE MATERIAL BLOCKING THE INSIDE OF THE ANTI-ICING TUBES. DUCT, AND OTHER ANTI-ICE TUBES ALSO FOUND DAMAGED ON, LT WING OTBD OF THE ENGINE.