What was found
DURING C-CHECK, FOUND SECTION OF FUSELAGE SKIN MISSING APPROX 3 SQUARE INCHES AT AFT AIRSTAIR CUT OUT FWD LEFT CORNER. REMOVED FASTENERS PER SRM 51-30-2, CUT OUT PER SRM 51-10-1, INSTALLED FILLER REPAIR PER SRM 53-30-3 4.5 INCH BY 1.75 INCH 2024-T3 .40 INCH.