What was found
DURING ACCOMPLISHMENT OF EO: 6-5710-7-3305 D3 PT3, WRI: 57101122, POST REMOVAL OF FASTENER "C" IN CTR WING BOX REAR SPAR, FR 47 LT JUNCTION WITH FUSELAGE SCORE DAMAGE FOUND IN WALL OF HOLE. HOLE "C" EXISTING DIA= 0.529 IN. FASTENER "C" HOLE REAMED TO REMOVE SCORED HOLE NDT CARRIED OUT, NIL FINDING AND FASTENER INSTALLED IAW REPAIR INSTRUCTIONS OF EA:6-5710-167454, RDAS 70579170/005/2013 ISSUE B REFERS. MAJOR REPAIR CAT B.