As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT LEFT SIDE; FLOOR STRUCTURE 'Z CHANNEL' AROUND HOLES HAS EVIDENCE CORROSION BETWEEN STA 727C TO STA 727D. WL 155;5; LBL-21.<[01] REMOVED AND REPLACED L/H Z-CHANNEL AT AFT CARGO COMPT FROM STA 727 TO STA 847 LBL 21 PER REF SRM 51-40-02-0G-0 AND DWG #146A7502;[02] VERIFIED STEP 1.;[03] VERIFIED.