What was found
INSPECTION TYPE-D, FS 70 CHORD (AFT) AT STR 27R TO 35R HAS HEAVY CORROSION. REMOVED SECTION OF AFT CHORD FROM BTWN LONG 32 TO 33R TO LONG 21R, FABRICATED REPAIR PARTS AND EXTERNAL DOUBLER AND INSTALLED IAW SRM 53-2-5 FIG 8C-2, 51-1-21, 51-1-20D AND 51-3-1.