As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK CORROSION WAS FOUND ON FITTING FLOOR SUPPORT IN AFT CARGO COMPARTMENT FR 52, RBL 28. MAINTENANCE CUTOUT DAMAGED SECTION OF FLOOR SUPPORT; FABRICATED A NEW REPLACEMENT SECTION OF FLOOR SUPPORT AND SPLICE PLATE; INSTALLED REPAIR PARTS IAW AWA E.R. 26-5325-00280-JL1.