What was found
DURING ACCOMPLISHMENT OF EO: 6-5710-7-3305 D3 PT3, WRI: 57101122, POST REMOVAL OF FASTENER "B" IN CTR WING BOX REAR SPAR FR 47 LT JUNCTION WITH FUSELAGE SCORE DAMAGE FOUND IN WALL OF HOLE. HOLE "B" EXISTING DIA= 0.591 IN. REAMED TO REMOVE SCORE AND HOLE NDT CARRIED OUT, NIL FINDING AND FASTENER INSTALLED IAW REPAIR INSTRUCTION OF EA: 6-5710-167454. AIB RDAS 70579170/005/2013, ISSUE B, REFERS MAJOR REPAIR, CAT B.