As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON LOWER SILL BTW FR 66 TO FR 68 AT STR 23R AT AFT GALLEY; REPLACED LOWER SILL BTW FR 66 TO FR 68 AT STR 23R AT AFT GALLEY AREA. IAW A320 SRM 51-42-11. WORK ACCOMPLISHED ON AEROMAN NR 2019-133626.