As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK INDICATION IN RIGHT SIDE OF UPPER DECK FLOORBEAM FUSELAGE STA 440 3RD AND 4TH HOLES FROM THE OUTBOARD TOP ROW OF FASTENERS STRAP AREA OF UPPER CORD REF S/B 747-53A2449 FIG 2 STEP 2. DISASSEMBLED AREA AT STA 440 DISCOVERED CRACKS IN FRAME WEB AND CRACKED SPLICE DOUBLER. INSTALLED NEW SECTION IAW SRM 51-20-01 AND SRM 51-30-02.