What was found
DURING C-CHECK, FUSELAGE SKIN CORRODED, LOCAL LEVEL 2, AT FRAME 61-62, STRINGER 21R-21L. MAINTENANCE COMPLETED REPAIR OF FUSELAGE SKIN AT FRAME 61-62, STRINGERS 21R-21L IAW SRM 53-31-01, FIG 201, TYPE A REPAIR. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.