As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, (FROM AEROMAN NR 2021-408112) CORROSION LOWER SILL AT LEVEL STR 23R AND BTW FR 66 TO FR 68 AT AFT GA LLEY AREA (CPCP RELATED REFER TO MPD TASK 534195-01); PERFORMED PERMANENT REPAIR ON LOWER SILL AT LEVEL STR 23R AND BTW FR 66 TO FR 68 AT AFT GALLEY AREA IAW SRM A321 53-41-14-300-001 FIGURE 001 SHEET 1 AND SHEET 2 REPAIR PRINCIPLE 5.