What was found
DURING C-CHECK, FOUND CORROSION AROUND NUTPLATE ON GUSSETT RT OMEGA BEAM, Y=479.0, FRAME 20. MAINTENANCE DETERMINED CORROSION AROUND NUTPLATE IN GUSSETT IS 100 PERCENT MATERIAL LOSS, R & R RT GUSSETT IAW SRM 51-40-02. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.