As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION***AFT CARGO Z CHANNEL BETWEEN STA 867-887; STR 25R; RBL 21; WL 155 HAS CORROSION AROUND MULTIPLE FASTENER HOLES. / REMOVED CORROSION 1/2' X 1/2' X .002'; CORROSION FOUND TO BE OUT OF LIMITS; DUE TO CORROSION IN HOLES PER SRM 53-00-53-1A-2; REMOVED Z CHANNEL BS 867-887 RBL 21 STR 25R. FABRICATED Z CHANNEL IAW DWG 146A7502; INSTALLED NEW Z CHANNEL IAW DWG 146A7502 & SRM 51-40-02