As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DECK COMPT AFTER ADDITION FLOOR PANELS OPEN UP FOR REPAIR LH STA 988 LBL 77 TO 90 FLOOR BEAM UPPER CHORD FOUND CORROSION(<P>MAIN DECK COMPT LH STA 988 LBL 77 TO 90 DAMAGED FLOOR BEAM UPPER CHORD REPAIRED, COMPLIED AS PER B747-400F SRM 53-00-51 REPAIR 3 REV 104. PN 65B38049-13. NO FURTHER DEFECTS NOTED</P>)