As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** LH SIDE PLATE (Z CHANNEL) SHOWS SEVERAL SPOTS OF CORROSION FROM STA 847 TO STA 727. DOT 82-012.<[01] REMOVED AND REPLACED Z CHANNEL AT AFT CARGO COMPT FROM STA 727 TO STA 847 PER REF SRM 51-40-02-0G-0 AND DWG#146A7502.;[02] VERIFIED STEP # 1