As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) CARBURETOR HEAT SHROUD ATTACHMENT CLAMP BROKEN. A PIECE OF THE CLAMP FELL INTO THE HEAT DUCT AND LODGED UNDER THE ALTERNATE AIRDOOR BEFORE ENTERING THE CARBURETOR VENTURI. THE SAFETY MESH WAS MISSING FROM THE HOT AIR INTAKE OF THE CARBURETOR HEAT SHROUD.