As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON STRINGER SPLICE FROM STA 1400 TO 1420 S-28L AT AFT CARGO COMPARTMENT PER TASK NR CP53-153-01I 2020-2379 (C2). LEVEL CORROSION 2, STR 29L BTW STA 1400 TO STA 1420 WAS REPAIRED PER INSTRUCTIONS CONTAINED IN ER/A 571509-14 REV ORIGINAL.