As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C U/D BS 360 FLOORBEAM UPPER CHORD AFT FLANGE AT RBL 43 FOUND 1EA FLOOR PANEL ATT HOLE CRACK RUNNING FWD .0626 INCH LONG. CRACK LENGTH .0625 INCH. U/D BS 360 FLOORBEAM UPPER CHORD AFT FLANGE AT RBL43 REPAIRED AS PER EO B747-5320-12407 APP D PLAN C FIG 3.