As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A 150 HOUR INSPECTION A STAIN OF FUEL WAS NOTED ON THE BOTTOM COWL ABOUT THE SIZE OF A PLATE. INVESTIGATION FOUND THE MECHANICAL FUEL PUMP WAS LEAKING FUEL FROM THE PLATE THAT HOLDS MIXTURE CONTROL AND MIXTURE STOP. THE PUMP WAS REPLACED WITH A SERVICEABLE UNIT.