What was found
DURING ROUTINE C-CHECK INSP FOUND EXTERNAL FUSELAGE SKIN CORRODED AT STA FS 1556.000 LONGERON 10 LT. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED DAMAGED AREA. FABRICATED NEW SKIN, REPAIR DOUBLER, FILLER, AND FINGER DOUBLER. CLEANED, TREATED, PRIMED AREA AND REPAIR PARTS. INSTALLED NEW SKIN AND REPAIR PARTS IAW SRM 51-1-8, SRM 53-2-0, SRM 53-2-1 FIGURE 7 TR 53-203, SRM 53-2-1, FIG 7 TR 53-203, SRM 53-5-2 FIGURE 1 ITEM "A", DPS 4.710 REV "L", SRM 51-1-8B, SRM 51-1-21, SRM 51-1-14, SRM 51-1-20D, AND SRM 51-3-1.