What was found
AFT CARGO COMPARTMENT LEFT SIDE; FLOOR STRUCTURE 'Z CHANNEL'; AROUND HOLES HAS EVIDENCE CORROSION BETWEEN STA 727E TO 747; WL 155.5; LBL-21 / [01] FOUND EXFOLIATED CORROSION AT AFT CARGO LH Z CHANNEL STA 727E TO 747 LBL21 OUT OF LIMITS PER REF SRM 51-10-02-0G-0;[02] RECEIVED AND LOCATED AND DRILLED NEW LH Z-CHANNEL STA 727-STA 847 (PN:146A7502-27) PER REF SRM 51-40-05-0G-0;[03] VERIFIED STEPS 1 AND 2<BR>OK TO TREAT AND PRIME HOLES;[04] TREATED AND PRIMED NEW HOLES PER REF AMM 51-21-41-370-804 AND AMM 51-21-72-370-804;[05] VERIFIED STEP #4