What was found
DURING ACCOMPLISHMENT OF EO: 6-5710-7-3305 D3 PT3, WRI: 57101122, POST REMOVAL OF FASTENER "A" IN CTR WING BOX REAR SPAR, FR 47, LT JUNCTION WITH FUSELAGE SCORE DAMAGE FOUND IN WALL OF HOLE. A-HOLE EXISTING DIA= 0.591 IN. FASTENER "A" HOLE REAMED TO REMOVE SCORES, 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.