As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT BROUGHT IN AIRCRAFT WITH ROUGH RUNNING ENGINE. ENGINE WOULD SURGE BELOW 900 RPM AND MIXTURE CONTROL WOULD NOT SHUT DOWN ENGINE. FOUND FUEL DRIPPING FROM CARBURETOR THROAT. THE CARBURETOR WAS REPLACED AND OPERATION RETURNED TO NORMAL.