What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK EXFOLIATION CORROSION WAS FOUND ON FLOORBEAM Y254, FR 20. MAINTENANCE BLENDED OUT CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; REMOVED DAMAGED AREA OF FLOORBEAM Y254 AT FR 20; FABRICATED A REPAIR ANGLE AND FILLER; INSTALLED REPAIR PARTS IAW A319 SRM 53-11-14, PG 203-206, FIG 201.