As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARBURETOR WAS SUBMITTED FOR INSPECTION. CUSTOMER STATED THE CARBURETOR WAS UNRESPONSIVE AT IDLE SHUT OFF. ALSO STATED BACKFIRING. DURING INSPECTION, NOTED THE CARBURETOR WAS FITTED WITH WHITE PLASTIC, ADVANCED POLYMER HOLLOW FLOAT. CARBURETOR FOUND NOT TO BE IN COMPLIANCE WITH MSA-13.