What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK EXFOLIATION CORROSION WAS FOUND ON UPPER SURFACE OF FLOORBEAM Y1292, BETWEEN FR 16-18. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; CUT OUT DAMAGED AREA OF FLOORBEAM Y1292, BETWEEN FR 16-17; FABRICATED 2 EACH FILLERS AND 4 EACH REPAIR ANGLES; INSTALLED REPAIR PARTS IAW A319 SRM 53-11-14, PG 205-206, FIG 201, & SRM 51-11-14, PG 203-208, FIG 201.