What was found
DURING ACCOMPLISHMENT OF EO: 6-5710-7-3305, D3, PT4, WRI: 57101121, POST REMOVAL OF FASTENER "C" IN CTR WING BOX REAR SPAR FR.47 RT JUNCTION WITH FUSELAGE SCORE DAMAGE FOUND IN WALL OF HOLE. HOLE "C" EXISTING DIA= 0.529 IN. FASTENER "C" HOLE REAMED TO REMOVE SCORES AND HOLE NDT CARRIED OUT, NIL FINDINGS. FASTENER INSTALLED IAW REPAIR INSTRUCTION: EA 6-5710-167455. AIB RDAS: 70579170/005/2013 ISSUE B, REFERS. MAJOR REPAIR CAT "B".