What was found
LWR FUSELAGE EXTERIOR SKIN CORRODED AT STA 1690.000 (L-28L TO L-28R). PERFORMED MAJOR REPAIR. REMOVED FASTENERS IAW SRM 51-1-20D PG 21, SRM 51-1-21 PG 1, SRM 51-3-0 PG 1. REMOVED CORROSION IAW SRM 51-1-8 PG 17-18. FOUND OUT OF LIMITS IAW SRM 53-2-0 PG 2P. CUT OUT CORRODED SECTION. PERFORMED NDT INSPECTION IAW NDT SPM PART 06-10-01-001. FABRICATED (8EA) INTERNAL DOUBLERS (AL7075-T6 0.050) AND (8EA) INTERNAL FINGER DOUBLERS (AL7075-T6 0.032) AND EXTERNAL SPLICE DOUBLER (AL7075-T6 0.063) AND NEW PLATING SEGMENT (AL7075-T6 0.050). CLEANED, TREATED AND PRIMED AREA AND REPAIRED PARTS. APPLIED PRC SEALANT TO FAYING SURFACES. INSTALLED REPAIRED PARTS WITH NEW FASTENERS. TORQUED FASTENERS.