As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REFERENCE NON ROUTINE CO50039. DURING C3 C-CHECK, INSP NOTED FLOOR BEAM Y1292 HAS CORROSION IN VARIOUS NUT CLIP HOLES FROM RT HAND FRAME 66 TO FRAME 67. SUPPLEMENTAL INFORMATION WILL BE PROVIDED AS SOON AS CORRECTIVE ACTION INFORMATION BECOMES AVAILABLE. MX R&R FLOORBEAM IN ACCORDANCE WITH THE REQUIREMENTS OF SRM 53-41-14, 51-42-00 AND 51-42-11, PAGE 24. UPON COMPLETION OF THE REPAIR IT WAS INSPECTED AND FOUND ACCEPTABLE.