What was found
RT RUDDER SKIN CRACKED 0.250, STA ZR 161.000 (HOIST POINT) MAJOR REPAIR. PERFORMED MAJOR REPAIR IAW BOEING MSG 1-RJ0SG AND BOEING MSG 1-RL7IU. REMOVED CRACKED SKIN IAW BOEING MSG 1-RJ0SG AND BOEING MSG 1-RL7IU, SRM 51-1-21 PG 1. FABRICATED NEW SKIN (2024-T3AL 0.032) IAW BOEING MSG 1-RJ0SG AND MSG 1-RL7IU. PERFORMED DIMPLING TO NEW SOLID SHEET SKIN IAW DC8 SRM 51-1-22. CLEANED, TREATED AND PRIMED AREA AND NEW SKIN IAW SRM 51-1-8B. APPLIED PRC SEALANT TO FAYING SURFACES IAW DC8 SRM 51-1-11 PG 9. INSTALLED NEW SKIN IAW BOEING MSG 1-RJ0SG AND BOEING MSG 1-RL7IU, DC8 SRM 51-1-21. AT C-CHECK INTERVALS A VISUAL AND X-RAY INSP IS ACCOMPLISHED TO INSPECT FOR CRACKS IN THE SKIN AND RADIUS OF THE INTERNAL RIBS.