What was found
DURING C-04 CHECK CORROSION WAS FOUND ON CENTER PROFILE IN AFT CARGO COMPARTMENT AT FR 56, STR 39 LT - 39 R/H. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; REMOVED CENTER PROFILE AT FR 56, STR 39 LT - 39 RT; FABRICATED A NEW REPLACEMENT PROFILE PER DWG 17-D53974972; INSTALLED REPAIR PART IAW A319 SRM 51-42-11, PG. 7-9, 12, & 21-22, FIG. 3 & 8.