As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PARTS ARE THE COMPONENTS OF STA 90.00. THEY RIVET TOGETHER. THIS AREA IS WHERE THE FLOAT KIT IS INSTALLED. RIGHT AND LEFT FLOAT ATTACH AREA WAS CRACKED IN MANY PLACES. THIS AIRCRAFT HAS BEEN ON FLOATS MOST OF ITS LIFE. SUBMITTER SUGGESTED INSPECTION OF THIS AREA AFTER SO MANY HOURS OPERATION WITH FLOAT EQUIPPED AIRCRAFT.