As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION AT AFT CARGO FLOOR STRUCTURE INTERCOSTAL (BETWEEN STA 747-767) RH UNDER Z CHANNEL MULTIPLE AREAS. CORROSION AT AFT CARGO FLOOR STRUCTURE INTERCOSTAL (BETWEEN STA 747-767 RBL 21 WL 156.3) RH UNDER Z CHANNEL MULTIPLE AREAS.<[01] REMOVED AND REPLACED AFT CARGO COMP INTERCOSTAL WEB (P/N 146A7505-8) BETWEEN STA 747 TO STA 767 PER REF. SRM 51-40-02-0G-0 AND DRAWING #146A7502.;[02] VERIFIED STEP#1