As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND AFT CARGO RH 'Z' CHANNEL FROM STA 727E TO STA 747 RBL 21 WL 155.5 HAS MULTIPLE SPOTS OF CORROSION.<[01] REMOVED AND REPLACED RH Z-CHANNEL AT AFT CARGO STA 727 TO 767 PER SRM 51-40-02-0G-0 AND DWG#146A7502 SH 26;[02] VERIFIED CORRECTIVE ACTION STEP 1