What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK A .5 INCH CRACK WAS FOUND ON AFT CARGO COMPARTMENT FLOOR PANEL SUPPORT AT FR 63, LBL 406MM. MAINTENANCE REMOVED DAMAGED FLOOR PANEL SUPPORT AT FR 63, LBL 406MM; FABRICATED A NEW REPLACEMENT FLOOR PANEL SUPPORT; INSTALLED REPAIR PART IAW A320 SRM 51-42-11 PG 8-12 & 22 FIG 2, 3 & 8.