As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION LOWER SILL FR 66RT AFT GALLEY AREA (CPCP RELATED 534147-01). REMOVED AND REPLACED LOWER SILL LOCATED ON RT SIDE AT LEVEL OF STR 23R BETWEEN FR 66 TO FR 68, IAW A320 SRM 51-72-11 AND DWG NR D53480505. WORK STEPS PERFORMED AREA DOCUMENT ON WCC 2020-359239 (NOTE: RII FOR MAJOR REPAIR ACCOMPLISHED ON AEROMAN WO: 2020 160/1 NRC: 2020-359233).