As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, FOUND RIGHT FWD KEEL X - 39.000 - X 21.290, S31S INBD ATTACH FLANGE CORRODED. BLENDED CORROSION IAW SRM 51-21-00-00-02. PERFORMED FPI ON BLENDED AREAS IAW QX CHAPTER 8, NO DEFECTS NOTED. TREATED AND PRIMED IAW SRM 51-21-10-02-01 AND 51-25-10-02-01. TOP COATED IAW SRM 51-25-25-02-01. APPLIED HARDCOAT IAW RD 8/4-53-4151. ALL BLENDS WERE WITHIN LIMITS IAW RD 8/4-53-4155.