As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAL - MAJOR REPAIR - DURING C4 CHECK DISCOVERED CORROSION ON THE R2 LOWER SILL AT THE CENTER FITTING FROM FS 66 TO FS 68 AT Y-1732. NO ALLOWABLE DAMAGE WAS FOUND IN THE AIRBUS SRM. MAINTENANCE REMOVED AND INSTALLED NEW R2 LOWER SILL AT THE CENTER FITTING FROM FS 66 TO FS 68 AT Y-1732 IAW AIRBUS 320 SRM 51-72-11 AND DRAWING D53480505.