As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED FLOOR HEAT AND WINDOW DEFOG SYSTEMS INEFFECTIVE/LOW FLOW. TROUBLESHOOTING REVEALED HOT AIR PIPE RUPTURED AT BEND ABOVE L/H WHEEL WELL UNDER L/H WING ROOT FAIRING. HOT AIR PIPE REPLACED AND AREA INSPECTED FOR HEAT DAMAGE NONE FOUND. AIRCRAFT RETURNED TO SERVICE.