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 LBL 47 FOUND 1EA PANEL ATT HOLE CRACK RUNNING AFT .0625 INCH LONG. CRACK LENGTH .0625 INCH. U/D BS 360 FLOORBEAM UPPER CHORD AFT FLANGE AT LBL 47 AREA REPAIRED AS PER RO B747-5320-12407 APP D PLAN C FIG 3.