What was found
FWD CARGO COMPARTMENT LH Z CHANNEL STA 400 TO STA 500D HAS SEVERAL SPOTS OF CORROSION AT HOLE SCREW. CORROSION AT HOLES AUTOMATICALLY OUT OF LIMITS / [01] LOCATED AND DRILLED L/H ZEE CHANNEL STA.400 TO STA.500D REF. B737-7 SRM 51-40-05-0G-0;[02] VERIFIED STEP 1<BR><BR>OK TO TREAT AND PRIME HOLES;[03] TREATED AND PRIMED ZEE CHANNEL REF. B737-7 SRM 51-20-01-0G-0;[04] VERIFIED STEP 3;[05] INSTALLED NUT PLATES ON ZEE CHANNEL REF. BOEING DRAWING #143A7500;[06] FABRICATED FWD CARGO COMPARTMENT L/H ZEE CHANNEL STA. 400 TO STA. 500D; REF; USED B737-7 SRM 51-40-05-0G-0; 51-20-01-0G-0; AND DRAWING #143A7500. BEING INSTALLED ON TASK CARD #TTG8Q004E0QK;[07] AND B737-7 SRM 51-40-02-0G-0;[08] ACTION: VERIFIED STEP 6 AND 7