What was found
DURING C-CHECK, CENTER OMEGA BEAM HAS CORROSION, LOCAL LEVEL 2 AROUND 2 NUTPLATE HOLES, FRAME 59-61. MAINTENANCE PERFORMED REPAIR OF CENTER OMEGA BEAM AT 2 NUTPLATE HOLES FRAME 59 AND 61 IAW EC5310-01473, REV D. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.