What was found
LT WING TOP SKIN SURFACE IS CORRODED AT THE REAR SPAR AREA FROM RIB 15-RIB 16. REMOVED CORROSION ; LT WING TOP SKIN T/E AREA BETWEEN RIBS 15-16 IAW SRM 57-20-12, PG 9. FOUND TO BE WITHIN LIMITS IAW SRM 57-20-12, PGS 9 & 111. TOOL T8285D. FLAP PEENED AREA IAW SRM 51-29-00, PG 201. ALODINED & PRIMED AREA IAW SRM 51-21-01, PG 3 & SRM 51-75-10, PG 203. INSTALLED 2 EA FASTENERS IAW SRM 51-40-21.