What was found
TWO BROKEN RIVETS AND BULGED RIB ON TOP OF WING CENTER BOX SECTION STA 759, RIGHT BUTT LINE 50. WEB WAS DISCOVERED TO HAVE EXFOLIATION CORROSION AT 2 LOCATIONS BEHIND RIB. CUT OUT 2 AREAS OF CORROSION ON WEB STA 759, RIGHT BUTT LINE 50 AND RIGHT BUTT LINE 53 IAW DC8 SRM 57-2-0. FABRICATED 2 FILLERS FROM 0.071" 7075-T6, FABRICATED DOUBLER FROM 0.040" 301 1/2 H IAW ABX REA D853-53183. TREATED AND PRIMED FILLERS AND DOUBLER IAW DC8 SRM 51-1-8. INSTALLED FILLERS AND DOUBLERS IAW ABX REA D853-53183.