What was found
DURING D-CHECK, LEFT VERTICAL EXTERNAL SKIN AT LBL 19 INSIDE TORQUE BOX IS HEAVILY CORRODED FROM BS 1334 TO BS 1346 AND S-10 TO LOWER TORQUE BOX CHORD ANGLE. REMOVED SURFACE CORROSION PER SRM 51-10-6. CUT OUT DAMAGED AREA PER SRM 55-30-3 AND ALODINE AND PRIMED PART PER SRM 51-10-2. FABRICATED 24 INCH BY 18 INCH .063 2024-T3 STRAPS DOUBLER 4 INCH BY 24 INCH AND 4 INCH BY 18 INCH .071 2024-T3. INSTALLED PARTS PER SRM 55-30-3.