What was found
**CORROSION' AFT CARGO FLOOR STRUCTURE L/H SIDEPLATE WL-155 LBL-21 BETWEEN STA 727B-727C WITH CORROSION AROUND FASTENER HOLES / [01] JOBCARD WILL BE ACCOMPLISHED IN TASKCARD #TTG8Q00EFAKS;[02] CORRECTION STEP 1: Z CHANNEL PN:146A7502-27 WILL BE REPLACED IN TASKCARD #TTG8Q00EFAKS;[03] VERIFIED STEPS 1 AND 2.;[04] THIS CARD WAS CLOSED IN ERROR AND REGENERATED. SEE T/C TTG8Q00EMHCL FOR CORRECTIVE ACTION.;[05] STEP 3 ENTER IN ERROR.