What was found
AFT CARGO FLOOR SUPPORT 22' LEFT 'Z' CHANNEL IS CORRODED AT B/S 727-727B<[01] FOUND EXFOLIATED CRACKED CORROSION AT AFT CARGO FLOOR SUPPORT L/H Z CHANNEL STA 727-727B PER SRM 51-10-02-0G-0;[02] LOCATED AND DRILLED NEW L/H Z CHANNEL FROM STA 727- 847 PER REF SRM 51-40-05-0G-0 MATERIAL USED: BAC 1496-377 7075 T6 P.O:1782284;[03] EDIT STEP #1 : FOUND EXFOLIATED CRACKED CORROSION AT AFT CARGO FLOOR SUPPORT L/H Z CHANNEL STA 727-727B OUT OF LIMITS PER SRM 53-00-53-1A-2;[04] VERIFIED AND INSPECTED STEP #2 AND #3.;[05] TREATED AND PRIME REWORKED AREA PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804;[06] EDIT STEP #5 : TREATED AND PRIME NEW L/H Z CHANNEL STA 727 TO 847 PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804;[07] VERIFIED STEP #6.<BR> OK TO INSTALL NEW FASTENER NUT PLATES.;[08] INSTALLED NEW FASTENER NUTPLATES AT NEW L/H Z CHANNEL STA 727-847 PER SRM 51-40-02-0G-0;[09] FINAL INSPECTION; WORK PERFORMED.