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 FS280.0 AND FLOOR SUPPORT (RIGHT) RBL9 OUTBOARD SIDE BELOW WL 73.00, DISCOVERED DURING C-CHECK INSPECTION. INSTALLED CLIP ON FLOORBEAM FS 280 AND FLOOR SUPPORT RBL 9 OTBD SIDE PER STANDARD REPAIR 601R 53-0057A.