What was found
FOUND DURING C-CHECK, RT WING FWD SPAR LOWER CAP IB OF NACELLE IS CHAFED. MAINTENANCE LIGHTLY BLENDED AREAS IAW SRM 51-10-10, ALODINED BARE METAL IAW SRM 51-20-43. FOUND DEEP CORROSION PITS, OUT OF ALLOWABLE LIMIT REF SRM 51-10-10. REMOVED 611BR TO FOM IAW AMM 51-20-05. REINSTALLED LEADING EDGE FAW 57-20-05.PERFORM OPS CHECK OF LEADING EDGE. FAILED OPS CHECK REFER TO W/O 19471, MR6525, REPLACMENT OF BOOT.