What was found
DURING C-CHECK, CORROSION AROUND NUTPLATE BOTH NUTPLATES ON GUSSETT AT RT OMEGA BEAM, Y+479.0, FRAME 22. MAINTENANCE DETERMINED CORROSION AROUND NUTPLATE HAS 100 PERCENT MATERIAL LOSS, R & R RT GUSSETT IAW SRM 41-40-02. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.