As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIXTURE CABLE HOUSING FAILED AT BRACKET ASSY WHERE CABLE IS SECURED TO THE CARBURETOR. CABLE COULD PULL LEVER TO 'LEAN', BUT COULD NOT PUSH TO 'RICH'. CABLE ALSO APPEARED TO BE TOO SHORT AS IT ENTERED THE BRACKET AT AN ACUTE ANGLE. THIS PREVENTED THE RETURN SPRING FROM OVERRIDING THE FRICTION OF THE CABLE HOUSING ON THE CABLE.