As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON DESCENT, THE DEICE PRESSURE CAUTION ILLUMINATED. AIRCRAFT WAS CLEAR OF CLOUD AND DEICE WAS SELECTED OFF. POST FLIGHT VISUAL INSPECTION REVEALED A SECTION OF THE LT OB DEICE BOOT WAS MISSING. THE LT OB LEADING EDGE ASSY WAS REPLACED AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE.