What was found
RUDDER RT SKIN DEFLECTED, ZR 150.000 TO ZR 178.719 (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW BOEING MESSAGE NR 1-OG7Z1, 1-OD780, SEMAN DRAWING NR 3714. REMOVED DAMAGED PLATING IAW DC8 SRM 51-1-21. FABRICATED NEW PLATING (AL2024-T3 0.032) IAW BOEING MESSAGE NR 1-0G7Z1, 1-OD780. CLEANED, TREATED AND PRIMED AREA AND NEW PLATING IAW DC8 SRM 51-1-8B. APPLIED PRC SEALANT ON FAYING SURFACE IAW DC8 SRM 51-1-11 PG 9. INSTALLED NEW PLATING IAW BOEING MESSAGE 1-OG7Z1, 1-OD780, SRM 51-1-21. THE RIBS BEHIND THE SKIN MUST BE X-RAY INSPECTED FOR ACOUSTIC FATIGUE CRACKS AT "C" CHECK INTERVALS, NOT TO EXCEED 24 MONTHS IAW BOEING MESSAGE NR 1-OD780. FOR REBALANCING SEE NR 0729.