As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ANNUAL INSPECTION OF AIRCRAFT, FOUND CORROSION ON RIB AT BASE OF VERTICAL STABILIZER. FORWARD 6 INCHES OF RIB WAS COMPLETELY DELAMINATED. AIRCRAFT HAD BEEN ON FLOATS IN SALT WATER ENVIRONMENT. REST OF AIRCRAFT IN GOOD CONDITION.