What was found
UPPER FUSELAGE EXT SKIN CRACKED 0.500" APPROX, STA 580.000 L-4R TO L-5R (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW SRM 53-2-1 FIG 7 SHEET 1, 3. REMOVED FASTENERS IAW SRM 51-1-21. CUT OUT DAMAGED AREA AND FABRICATED REPAIR DOUBLER (AL7075T6 0.100") (2EA) INTERNAL FINGER DOUBLERS (AL7075T6 0.050") AND FILLER (AL7075T6 0.090") IAW SRM 53-2-1 FIG 7 SHEET 1-3, SRM 53-4-1 FIG 13 ITEM A, SRM 51-9-0 FIG 68A. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS IAW SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW SRM 51-1-11. INSTALLED REPAIR PARTS IAW SRM 53-2-1 FIG 7 SHEET 1, 3, SRM 51-1-21, SRM 51-1-20D, SRM 51-3-1 (TORQUE) THIS IS A CLASS 1 TYPE INSPECTION AND NEEDS AN EXTERNAL VISUAL INSPECTION EACH 4.000 FC