As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING BC-4 CHECK, EXFOLIATION CORROSION WAS FOUND ON R-2 DOOR SHAPE SILL OUTBOARD EDGE FORWARD OF FS 68. MAINTENANCE REMOVED DAMAGED AREA OF R-2 DOOR SHAPE SILL FORWARD OF FS 68; FABRICATED A NEW REPLACEMENT SECTION OF SILL; INSTALLED REPAIR PART IAW A319 SRM 51-72-11.