What was found
DURING C-04 CHECK CORROSION WAS FOUND ON SKIN AT AFT LOWER FUSELAGE FR 62 AND FR 63, BETWEEN STR 41 LT AND STR 41 RT, IFPC ANTENNA CUTOUT. MAINTENANCE CLEANED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS. CUT OUT DAMAGED SKIN; FABRICATED A REPAIR DOUBLER; INSTALLED REPAIR PART IAW A320 SRM 53-00-11 PG 209-214, FIG 203.