As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, FOUND CORROSION ON AFT FUSELAGE INTERNAL STRUCTURE BETWEEN FRAMES 65 TO 66 AND S42-43L. REPLACED REINFORCEMENT ON AFT FUSELAGE INTERNAL STRUCTURE BETWEEN FR.65 TO FR.66 AND STR.40L TO STR 43L IAW SRM 51-72-11 AND DWG D53480030.