What was found
DURING C-CHECK INSPECTION, DISCOVERED CORROSION ON THE RIGHT FLAP SPAR UPPER TEE CHORD AT XFLS 187.406. REPAIRED BY BLENDING OUT THE CORRODED AREA, HFEC INSPECTING, ROTO PEENING AND REINSTALLING FITTING REMOVED FOR ACCESS WITH 301 CRES SHIMS TO FILL VOID CREATED BY BLENDOUT. ACCOMPLISHED IAW EVERGREEN AIR CENTER, ENGINEERING CHANGE/REPAIR AUTHORIZATION NR N660HA-57-013-EAC. (M)