What was found
DURING HEAVY MAINTENANCE: CORROSION STRINGER 42L BTW FR 56 TO FR 59 IN AFT CARGO COMPARTMENT / (RESOLVED ON W/O: 1258020 TASKCARD: NR-00022) REF AEROMAN N/R 2023-708948,PERFORMED REPAIR STRINGER 42L LOC. BTW FR 57 TO FR 59 IN AFT CARGO COMPARTMENT IAW A320 SRM 53-00-13-300-001 AND DWG E53470342, E53470320.