What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK GALVANIC CORROSION WAS FOUND ON AFT CARGO DOOR CUTOUT LOWER SILL JUST FORWARD OF FRAME SUPPORT FITTING NR 7, FR 52A. MAINTENANCE REMOVED DAMAGED SEALING PROFILE AT AFT CARGO DOOR CUTOUT LOWER SILL; FABRICATED A NEW REPLACEMENT SEALING PROFILE; INSTALLED REPAIR PART IAW A320 SRM 51-44-11, PG. 16-20, FIG. 2.