What was found
DURING C-CHECK, CORROSION AROUND TWO NUTPLATES ON CENTER OMEGA BEAM GUSSET , Y-0.0, BETWEEN FRAMES 14 AND 18 AS MARKED IN CENTER FUSELAGE I. MAINTENANCE R & R GUSSETT AND 3 EA DOUBLERS ON FWD CENTER BEAM NR FRAME 14 IAW SRM 51-40-02, APPLIED PRIMER AND TOPCOAT IAW CPM 51-21-05, 51-21-06. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.