As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CRACK IN CLIP ON FLOORBEAM FS 280.0 AND FLOOR SUPPORT (RIGHT) RBL9 INBOARD SIDE BELOW WL 730.00, DISCOVERED DURING C-CHECK INSPECTION. INSTALLED CLIP ON FLOORBEAM FS 280 AND FLOOR SUPPORT RBL 9 INBD SIDE PER STANDARD REPAIR 601R 53-0057A.